JP2007003662A - Astronomical photographing device, astronomical photographing method and astronomical photographing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a light-emitting moving body from being photographed on a photograph, at astronomical photographing. <P>SOLUTION: The astronomical photographing device is equipped with a photographing means for taking a photograph by performing exposure for fixed time, by setting sky including a celestial body that is a photographing object as a photographing range, while tracking the celestial body, and is equipped with: a recognition means for recognizing the orbit of the light-emitting moving body, excluding the celestial body; a decision means for deciding whether the light emitting moving body enters within the photographing viewing angle of the photographic means, based on the orbit information of the light-emitting moving body recognized by the recognition means; and an exposure control means for interrupting the exposure, when the decision means decides that the light-emitting moving body will enter within the photographic viewing angle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an astronomical imaging device, an astronomical imaging method, and an astronomical imaging system.

When shooting an astronomical object such as a star with an astronomical telescope equipped with a camera, the amount of light of the celestial object to be imaged is so small that it is necessary to expose it for a long time of several ten minutes to several hours. Since the celestial body moves during this exposure time, it is necessary to track the celestial object to be photographed using the equator, but in recent years, astronomical photographing equipment using an equator with an automatic tracking function has been on the market. Astronomical photography can be performed with very high accuracy and ease. For example, the prior art relating to such an astronomical imaging device is disclosed in Patent Document 1 below.
JP-A-2-35409

 However, when performing astronomical photography as described above, unexpected light emitting moving bodies such as artificial satellites and airplanes enter the camera angle of view during a long exposure time, and the light traces of these light emitting moving bodies appear in the photograph. There is a problem that it ends up. In order to prevent this, the photographer always monitors the surroundings of the celestial object to be photographed visually, and if the light emitting moving body is likely to enter the angle of view (shooting range) of the camera, the exposure must be stopped manually. The user is overwhelmed, and there is a possibility that the light emitting moving body may be missed because there is a limit in visual monitoring.

 The present invention has been made in view of the above-described circumstances, and an object of the present invention is to prevent a light-emitting moving body from being reflected in a photograph during astronomical photography.

 In order to achieve the above object, in the present invention, as a first solution means for an astronomical imaging device, imaging means for tracking a celestial object to be imaged and exposing the sky including the celestial object for a fixed time exposure. A recognition means for recognizing the trajectory of the light emitting moving body excluding the celestial body, and the light emitting moving body based on the trajectory information of the light emitting moving body recognized by the recognition means. Determining means for determining whether or not to enter the shooting angle of view, and an exposure control means for interrupting exposure when the determining means determines that the light emitting mobile body enters the shooting angle of view. It is characterized by comprising.

 In the present invention, as the second solving means relating to the astrophotography device, in the first solving means, the recognition means includes a detecting means for detecting a photographing position and a wireless communication means, and the wireless communication The information on the shooting position detected by the detecting means is transmitted to the server in which the trajectory information of the issuing moving body is held in advance via the wireless communication network, and the light emitting moving body corresponding to the shooting position is transmitted from the server. The trajectory of the light emitting mobile body is recognized by receiving the trajectory information.

 In the present invention, as a third solving means relating to the astrophotography device, in the second solving means, the detecting means measures the longitude and latitude of the shooting position by GPS (Global Positioning System). The photographing position is detected.

 In the present invention, as a fourth solving means related to the astronomical imaging apparatus, in the first solving means, the imaging means uses a sky including the celestial body to be imaged as a first imaging range. An imaging unit; and a second imaging unit that captures a second imaging range that includes the first imaging range and is wider than the first imaging range, and the recognition unit includes the second imaging unit. And detecting the presence of the light emitting moving body by performing a predetermined image analysis of the image taken by the step, recognizing the trajectory of the light emitting moving body based on the detection by the detecting means, and the determination The means determines whether or not the light-emitting moving body enters the shooting angle of view of the first imaging means based on the trajectory information of the light-emitting moving body recognized by the recognition means, and the exposure control means The light emission by the determination means If the moving object is determined to be intruded into the imaging field angle of the first photographing means interrupts the exposure, characterized in that.

 Further, in the present invention, as a fifth solving means related to the astronomical imaging device, in the fourth solving means, the detection means is based on a temporal change of the image of the imaging range of the second imaging means. A moving light spot having a moving speed different from the moving speed of the celestial body to be imaged is searched, and the moving light spot is detected as a light emitting moving body.

 On the other hand, in the present invention, as a first solving means related to the astronomical imaging method, an astronomical imaging method using an imaging means that tracks and captures the celestial body to be imaged and exposes the sky including the celestial object for a fixed time exposure. And a recognition step for recognizing the trajectory of the light emitting mobile body excluding the celestial body, and the light emitting mobile body within the photographing field angle of the photographing means based on the trajectory information of the light emitting mobile body recognized in the recognition step. A determination step for determining whether or not to enter, and an exposure control step for interrupting exposure when it is determined in the determination step that the light emitting moving body enters the shooting angle of view. To do.

 In the present invention, as the second solving means related to the astronomical imaging method, in the first solving means, the recognition step includes a detection step for detecting an imaging position and a wireless communication step for performing wireless communication. In the wireless communication step, information on the shooting position detected in the detection step is transmitted to a server in which trajectory information of the issuing mobile body is held in advance via the wireless communication network, and the shooting position is transmitted from the server. The trajectory of the light emitting moving body is recognized by receiving the trajectory information of the light emitting moving body corresponding to the above.

 In the present invention, as a third solving means relating to the astronomical photography method, in the second solving means, in the detection step, the longitude and latitude of the shooting position are measured by GPS (Global Positioning System). The photographing position is detected.

 Further, in the present invention, as a fourth solving means relating to the astronomical imaging method, in the first solving means, the imaging means includes a first imaging range that includes a sky including the celestial body to be imaged. Imaging means; and second imaging means for imaging a second imaging range that includes the first imaging range and is wider than the first imaging range; and the recognition step includes the second imaging unit. A detection step of detecting the presence of the light emitting mobile body by performing a predetermined image analysis of an image captured by the imaging means, and recognizing the trajectory of the light emitting mobile body based on the detection by the detection step; In the determining step, based on the trajectory information of the light emitting moving body recognized in the recognizing step, it is determined whether or not the light emitting moving body enters the shooting angle of view of the first imaging means, and the exposure control Step , It said when the light emitting moving body determining step is determined to be intruded into the imaging field angle of the first photographing means interrupts the exposure, characterized in that.

 In the present invention, as the fifth solving means relating to the astronomical photography method, in the fourth solving means, the detecting step is based on temporal change of the image of the photographing range of the second photographing means. A moving light spot having a moving speed different from the moving speed of the celestial body to be imaged is searched, and the moving light spot is detected as a light emitting moving body.

 Furthermore, in the present invention, as a first solving means related to the astronomical imaging system, a trajectory information collection / delivery server that collects and distributes trajectory information of the light-emitting mobile body, and a light-emitting mobile body that is arranged in various places and detects the light-emitting mobile body 4. A light emitting mobile body detection means for transmitting trajectory information of a moving body to the trajectory information collection / distribution server; and an astronomical imaging apparatus according to claim 2 or 3 for acquiring trajectory information of the light emitting mobile body from the trajectory information collection / distribution server. It is characterized by comprising.

 According to the present invention, in an astronomical imaging device having imaging means for tracking a celestial object to be imaged and exposing the sky including the celestial object for a certain period of time as an imaging range, the trajectory of the light emitting mobile object excluding the celestial object is recognized. Since the exposure is interrupted while the light emitting moving body enters the shooting angle of view of the photographing means, it is possible to prevent the light emitting moving body from being reflected in the photograph.

Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
FIG. 1 is a schematic configuration diagram of an astronomical imaging apparatus according to the first embodiment of the present invention. In this figure, symbol C is the astronomical photographic device, N is a network (wireless communication network), and S is an orbit information distribution server. As shown in the figure, the astrophotography device C is connected to the orbit information distribution server S via a network N.

 Such an astronomical photographic device C includes an astronomical telescope c1, an equator c2, a camera c3, a fixed support c4, an input unit c5, a control unit c6, and a communication terminal (wireless communication means) c7 with a GPS (Global Positioning System) function. It is composed of

 As is well known, the astronomical telescope c1 is for observing celestial bodies such as stars and constellations to be photographed, and is attached to the upper part of the equatorial mount c2 so as to be perpendicular to the declination axis. Although not shown, the equatorial mount c2 is provided with a servo motor on each axis for rotating the astronomical telescope c1 about the axis of the ecliptic axis and the declination axis, and these servo motors are supplied from the controller c6. Control is performed to capture and track the celestial object to be imaged by the input capture and tracking control signal. The equatorial mount c2 incorporates a polar axis telescope for polar axis alignment on the equatorial axis.

 The camera c3 is, for example, a high-sensitivity cooled CCD camera, and is connected to the eyepiece of the astronomical telescope c1 to photograph an astronomical object to be imaged. In the camera c3, the exposure time, focus adjustment, shutter opening / closing, and the like are controlled by a shooting control signal input from the control unit c6. The fixed support base c4 is a support base for fixing the equator c2 so as not to vibrate.

 The input unit c5 is for inputting the ascension and declination of the celestial object selected by the photographer as an object to be imaged, and outputs a data signal indicating the ascension and declination to the control unit c6.

 The control unit c6 generates a capture / tracking control signal based on the data signal indicating the celestial and declination of the celestial object to be imaged input from the input unit c5, and generates an equatorial mount c2 (specifically, the equatorial axis and Output to the declination axis) to control capturing and tracking of the celestial object to be imaged. The control unit c6 outputs a shooting control signal to the camera c3, and controls exposure time, focus adjustment, shutter opening / closing, and the like.

 Further, the control unit c6 outputs an orbit information acquisition instruction to the communication terminal c7 with a GPS function to acquire orbit information of a light emitting moving body such as an artificial satellite or an airplane excluding astronomical objects (recognition means), and the orbit information Based on the above, it is determined whether or not the light emitting moving body enters the shooting angle of view of the camera c3 (determination means), and a shooting control signal for instructing opening / closing of the shutter is given to the camera c3 based on the determination result. Output (exposure control means).

  The communication terminal c7 with a GPS function measures a position (imaging position) where the astronomical imaging apparatus C is installed using a global positioning system and is input from the control unit c6. A signal emitted from the GPS artificial satellite is received in synchronization with the orbit information acquisition instruction, and the longitude and latitude of the imaging position are measured. Furthermore, the communication terminal c7 with a GPS function transmits the longitude and latitude as shooting position information to the orbit information distribution server S via the network N.

 The orbit information distribution server S is a server that distributes orbit information of light-emitting mobile objects such as artificial satellites and airplanes excluding celestial bodies, and based on the shooting position information received from the communication terminal c7 with GPS function. The orbit information is distributed to the communication terminal c7 with GPS function via the network N.

  Next, the operation of the astrophotography device C of the first embodiment configured as described above will be described.

FIG. 2 is a flowchart showing the astronomical photographing operation of the astronomical photographing apparatus C.
First, the photographer inputs the ascension and declination of the celestial body to be photographed into the input unit c5 (step S1). When the control unit c6 obtains the data signal indicating the ascension and declination from the input unit c5, the ascension and declination axes of the equatorial mount c2 so that the astronomical telescope c1 faces in the direction of the ascension and declination. A capture / tracking control signal is output to the servo motor provided at (step S2). These servomotors are driven to rotate based on the capture / tracking control signal, and after the astronomical telescope c1 is captured in the direction of the celestial object to be imaged, automatic tracking is started. Of course, the polar axis alignment of the equatorial mount c2 is accurately performed before such capturing and tracking of the celestial object to be imaged.

  When the capturing of the celestial object to be imaged is completed, the control unit c6 outputs an imaging control signal to the camera c3, performs focusing, sets an exposure time, etc., and starts imaging (step S3). At this time, the controller c6 continues to output a shooting control signal (shutter open signal) for opening the shutter of the camera c3. Subsequently, the control unit c6 outputs a trajectory information acquisition instruction to the communication terminal with GPS function c7 (step S4). The communication terminal with GPS function c7 measures the longitude and latitude of the shooting position in synchronization with the above-mentioned orbit information acquisition instruction (step S5), and uses the longitude and latitude as shooting position information via the network N for the orbit information distribution server S. (Step S6). And the communication terminal c7 with a GPS function acquires the track | orbit information of the light emission mobile body according to the imaging | photography position from the track | orbit information distribution server S (step S7), and outputs the said track | orbit information and imaging | photography position information to the control part c6.

  Subsequently, the control unit c6 is based on the direction in which the camera c3 is currently facing (incline and declination), the shooting angle of view of the camera c3, the trajectory information of the light emitting moving body, and the shooting position information (longitude and latitude). It is determined whether or not the light emitting moving body enters the shooting angle of view of the camera c3 (step S8). If the controller c6 determines in step S8 that the light emitting moving body enters the shooting angle of view of the camera c3, the time when the light emitting moving body enters the shooting angle of view of the camera c3 (intrusion time) and the shooting angle of view are set. The time to leave (the time to leave) is calculated (step S9). Then, the control unit c6 outputs a shooting control signal (shutter close signal) for closing the shutter of the camera c3 to the camera c3 from the entry time to the withdrawal time (step S10).

  When a shutter close signal is input from the control unit c6, the camera c3 closes the shutter and interrupts exposure (step S11). The controller c6 stops the output of the shutter close signal at the time of detachment and outputs a shutter open signal to the camera c3. The camera c3 opens the shutter again based on the shutter open signal and resumes exposure (step S12). . Then, when there are a plurality of light emitting moving bodies that enter the shooting angle of view, the control unit c6 returns to step S10 and repeats the operations from step S10 to step S12 (step S13). If there is no other light emitting moving body that enters the shooting angle of view in step S13, the control unit c6 outputs a shutter open signal to the camera c3 until the exposure time ends, and ends the shooting (step S14). If the control unit c6 determines in step S8 that there is no light emitting moving body that enters the shooting angle of view, the control unit c6 outputs a shutter open signal to the camera c3 until the exposure time ends, and ends the shooting.

  As described above, according to the first embodiment, the trajectory information of the light emitting mobile body is obtained from the trajectory information distribution server S, and the time at which the light emitting mobile body enters the shooting angle of view is calculated based on the trajectory information. Thus, since the exposure is interrupted only at that time, it is possible to prevent the light emitting moving body from being reflected in the photograph.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
FIG. 3 is a schematic configuration diagram of an astronomical imaging apparatus according to the second embodiment of the present invention. As shown in this figure, the astronomical imaging device of the second embodiment includes an astronomical imaging unit A having substantially the same configuration as that of the first embodiment, and a light emitting mobile object detection unit B for detecting a light emitting mobile object. It has. The light emitting moving body detection unit B includes a detection astronomical telescope b1, a detection equator b2, a detection camera b3, a fixed support base b4, and an image analysis unit b5. In FIG. 3, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

 The detection astronomical telescope b1 is for observing the same object to be imaged as the astronomical telescope c1, and is attached to the upper part of the detection equator b2 so as to be perpendicular to the declination axis. The detection equator b2 is controlled so as to capture and track the celestial object to be imaged by a capture / tracking control signal input from the control unit c6A, similarly to the equator c2. The detection camera b3 is a high-sensitivity video camera, and has a wide shooting angle of view (second angle of view) including the shooting angle of view (first angle of view) of the camera c3 as shown in FIG. The second angle of view is monitored.

 The image analysis unit b5 detects the presence of the light emission moving body in the second angle of view by performing image analysis of the moving image taken by the detection camera b3, and the light emission movement object enters the first angle of view. Then, an intrusion detection signal is output to the control unit c6A.

  As in the first embodiment, the control unit c6A captures and tracks the astronomical telescope c1 and the detection astronomical telescope b1 in the direction of the ascension and declination of the celestial object that is input from the input unit c5. The control signal is output to the equator c2 and the detection equator b2, and the imaging control signal is output to the camera c3 and the detection camera b3. Further, the control unit c6A outputs a shooting control signal for instructing opening / closing of the shutter based on the intrusion detection signal input from the image analysis unit b5 to the camera c3.

Next, the operation of the astrophotography device of the second embodiment configured as above will be described.
FIG. 5 is an operation flowchart of the astronomical imaging device of the second embodiment.

 First, the photographer inputs the ascension and declination of the celestial body to be photographed into the input unit c5 (step S20). When the control unit c6A obtains the data signal indicating the longitude and declination from the input unit c5, the equator c2 and the detection are performed so that the astronomical telescope c1 and the detection astronomical telescope b1 face in the direction of the ascension and declination. A capture / tracking control signal is output to a servo motor provided on the ecliptic axis and declination axis of the equatorial mount b2 (step S21). The servo motor is driven to rotate based on the capture / tracking control signal and captures the astronomical telescope c1 and the detection astronomical telescope b1 in the direction of the celestial object to be imaged, and then starts automatic tracking.

  Then, when the capturing of the celestial object to be photographed is completed, the control unit c6A outputs a photographing control signal to the camera c3 and the detection camera b3 and starts photographing (step S22). At this time, as shown in FIG. 4, the first angle of view of the camera c3 is set to fall within the second angle of view of the detection camera b3.

  The image analysis unit b5 performs image analysis on the moving image having the second angle of view photographed by the detection camera b3, and searches for a moving light spot that moves at a speed different from that of the celestial body (step S23). When the image analysis unit b5 detects the moving light point as described above (step S24), the image analyzing unit b5 recognizes the moving light point as a light emitting moving body and determines the first image from the moving direction (orbit) of the moving light point. It is determined whether or not to enter the corner (step S25). If no moving spot is detected in step 24, or if it is determined in step S25 that the moving spot does not enter the first angle of view, the operation proceeds to step S28.

If it is determined in step S25 that the moving light spot enters the first angle of view, the image analysis unit b5 always monitors the subsequent movement of the moving light point, and when the moving light spot enters the first angle of view. An intrusion detection signal is output to the control unit c6A. The controller c6A outputs a shutter close signal to the camera c3 in synchronization with the intrusion detection signal, and interrupts exposure (step S26). Then, when the moving light spot leaves the first angle of view, the image analysis unit b5 stops outputting the intrusion detection signal, and the control unit c6A outputs a shutter open signal to the camera c3 to resume exposure (step) S27).
Such operations from step S23 to S27 are repeated until the end of photographing (step S28).

  As described above, according to the second embodiment, the celestial body photographing unit A and the light emitting moving body detecting unit B are provided, and the light emitting moving body is detected by performing image analysis of the moving image captured by the detection camera b3. Since the exposure in the astronomical photographing unit A is interrupted, it is possible to prevent the light emitting moving body from being reflected in the photograph.

[Third Embodiment]
Next, a third embodiment of the present invention will be described.
FIG. 6 is a schematic configuration diagram of an astronomical imaging system according to the third embodiment of the present invention. In this figure, the code | symbol D is a light emission mobile body detection apparatus, C is the astronomical imaging device in 1st Embodiment, N is a network, S1 is an orbit information distribution server.

 The light emitting mobile body detection device D is a light emitting mobile body detection unit B (detection astronomical telescope b1, detection equator b2, detection camera b3, fixed support base b4, image analysis) similar to the astronomical imaging device of the second embodiment. Part b5), a storage part d1, a control part d2, and a communication terminal d3 with a GPS function.

 The detection astronomical telescope b1 is for observing a celestial object to be imaged, and is attached to the upper part of the detection equator b2 so as to be perpendicular to the declination axis. The detection equator b2 is controlled to capture and track a celestial object to be imaged by a capture / tracking control signal input from the control unit d2. The detection camera b3 is a video camera with a wide angle of view and high sensitivity, and shoots a moving image with this angle of view as the shooting range. The image analysis unit b5 detects the presence of the light emitting moving body within the angle of view of the detecting camera b3 by performing image analysis of the moving image taken by the detecting camera b3, and further creates trajectory information of the light emitting moving body. It outputs to the control part d2.

 The storage unit d1 stores the celestial and declination of a plurality of celestial bodies, and the control unit d2 acquires the celestial and declination of the celestial object to be photographed from the storage unit d1, and obtains a capture / tracking control signal. It is generated and output to the detection equatorial mount b2, and capture and tracking of the celestial object to be imaged are controlled. Further, when acquiring the trajectory information of the light emitting moving body from the image analysis unit b5, the control unit d2 outputs the trajectory information transmission instruction and the trajectory information to the communication terminal with GPS function d3.

 The communication terminal d3 with GPS function measures the longitude and latitude of the shooting position as shooting position information, and sends the shooting position information and the orbit information to the orbit information distribution server via the network N according to the orbit information transmission instruction of the control unit d2. Send to S1.

 The light emitting mobile body detection devices D configured as described above are installed in various parts of the world, and the trajectory information of the light emitting mobile bodies detected from the respective photographing positions is distributed via the network N together with each photographing position information. It is transmitted to the server S1. The orbit information distribution server S1 collects and stores the photographing position information and the orbit information of the light emitting moving body transmitted from the light emitting moving body detection device D as described above, and the astronomical photographing apparatus connected via the network N. The orbit information of the light emitting moving body is distributed to C. This astronomical imaging device C is also installed in various parts of the world, and each user is used to photograph a desired celestial object.

  Next, the operation of the astrophotography system of the third embodiment configured as above will be described. FIG. 7 is an operation flowchart of the astrophotography system.

 First, the control unit d2 acquires the celestial celestial and declination of the celestial object to be photographed from the storage unit d1, and the detection equator b2 so that the detection celestial telescope b1 faces in the direction of the celestial and declination. A capture / tracking control signal is output to the servo motors provided on the red meridian axis and the declination axis (step S30). These servo motors are driven to rotate based on the capture / tracking control signal, and after capturing the detection astronomical telescope b1 in the direction of the celestial object to be imaged, automatic tracking is started.

  Then, when the capturing of the celestial object to be photographed is completed, the control unit d2 outputs a photographing control signal to the detection camera b3 and starts photographing (step S31). Subsequently, the communication terminal with GPS function d3 measures the longitude and latitude of the shooting position as shooting position information (step S32).

  The image analysis unit b5 performs image analysis on the moving image taken by the detection camera b3, and searches for a moving light spot that moves at a speed different from that of the celestial body (step S33). When the image analysis unit b5 detects the moving light point as described above (step S34), the image analyzing unit b5 recognizes the moving light point as a light emitting moving body, and creates trajectory information within the angle of view of the light emitting moving body ( Step S35). And the control part d2 will output the orbit information transmission instruction | indication and the said orbit information to the communication terminal d3 with a GPS function, if the said orbit information is acquired from the image analysis part b5, and the communication terminal d3 with a GPS function will receive the said orbit information and The imaging position information is transmitted to the trajectory information distribution server S1 via the network N (step S36).

  When the trajectory information distribution server S1 acquires the shooting position information and the trajectory information (step S37), the shooting position information and the trajectory information are stored in an internal database (step S38), and the shooting positions sent from various places are also stored. Based on the information and the trajectory information, the three-dimensional trajectory of the light emitting mobile body is calculated, and the trajectory information of the light emitting mobile body is distributed to the astronomical imaging device C connected via the network N (step S39). The astronomical imaging device C controls the opening and closing of the shutter based on the trajectory information of these light emitting moving bodies, and prevents reflection in the photograph.

  As described above, according to the astronomical imaging system, the orbit information of the light emitting moving body is collected in the orbit information distribution server S1 from the light emitting moving body detecting devices D installed in various parts of the world, and these orbits are collected in each astronomical imaging device C. By distributing the information, the orbit information of the light emitting moving body can be shared by each user, and the orbit information can be obtained in real time. Therefore, it is possible to more reliably prevent the light emitting moving body from being reflected in the photograph.

  In addition, this invention is not limited to the said embodiment, For example, the following modifications can be considered.

(1) In the first embodiment and the second embodiment, the photographer inputs the ascension and declination of the celestial object to be photographed. For example, a database storing star charts of various celestial objects is stored. In addition, if the photographer inputs a desired celestial name and photographing date and time, the celestial object may be automatically captured and tracked.

(2) In the second and third embodiments, the image analysis unit b5 detects not only the trajectory of the light emitting moving body but also the brightness at the same time, and determines whether or not this brightness is at a level reflected in the photograph. However, when the brightness is not high enough to appear in the photograph, it may not be recognized as a light emitting moving body. As a result, an unnecessary opening / closing operation of the shutter can be suppressed.

(3) The communication terminals c7 and d3 with GPS function may be mobile communication terminals such as a mobile phone having a GPS function and a PHS (Personal Handyphone System) terminal.

(4) In the second embodiment, the light-emitting moving body detection unit B includes the detection astronomical telescope b1 and the detection camera installed on the equatorial mount c2 of the astronomical imaging unit A in parallel with the imaging astronomical telescope c1. It is good also as b3 and the image analysis part b5. Further, when the detection astronomical telescope b1 is the detection astronomical telescope b1 in the third embodiment, the trajectory information distribution server S1 can collect the trajectory information of the light emitting moving bodies as many as the number of photographers. The trajectory can be calculated with higher accuracy.

1 is a schematic configuration diagram of an astronomical apparatus according to a first embodiment of the present invention. It is an operation | movement flowchart figure of the astronomical imaging device in 1st Embodiment of this invention. It is a structure schematic diagram of the astronomical imaging device concerning 2nd Embodiment of this invention. It is a figure which shows the relationship between the 1st view angle and 2nd view angle in 2nd Embodiment of this invention. It is an operation | movement flowchart figure of the astronomical imaging device in 2nd Embodiment of this invention. It is a structure schematic diagram of the astronomical imaging system concerning 3rd Embodiment of this invention. It is an operation | movement flowchart figure of the astronomical imaging system in 3rd Embodiment of this invention.

Explanation of symbols

 C ... Astronomical imaging device, c1 ... Astronomical telescope, c2 ... Equatorial, c3 ... Camera, c4, b4 ... Fixed support, c5 ... Input unit, c6, c6A, d2 ... Control unit, d1 ... Storage unit, c7, d3 ... Communication terminal with GPS function, D ... Light emitting moving body detection device, b1 ... Detection astronomical telescope, b2 ... Detection equator, b3 ... Detection camera, N ... Network, S, S1 ... Orbit information distribution server

Claims (11)

An astronomical imaging device comprising imaging means for tracking a celestial object to be imaged and exposing the heavens including the celestial object as an imaging range for exposure for a fixed time,
Recognizing means for recognizing the trajectory of the light emitting moving body excluding celestial bodies;
Determining means for determining whether or not the light-emitting moving body enters the shooting angle of view of the imaging means based on the trajectory information of the light-emitting moving body recognized by the recognition means;
An astronomical imaging apparatus comprising: an exposure control unit that interrupts exposure when the determination unit determines that the light-emitting moving body enters the imaging field angle.  The recognizing means includes a detecting means for detecting a photographing position and a wireless communication means, and information on the photographing position detected by the detecting means by the wireless communication means via the wireless communication network. 2. The trajectory of the light emitting mobile body is recognized by transmitting the information to a server in which the information is stored in advance and receiving the trajectory information of the light emitting mobile body corresponding to the imaging position from the server. The astronomical imaging device described.  The astrophotography apparatus according to claim 2, wherein the detection means detects the shooting position by measuring the longitude and latitude of the shooting position by GPS (Global Positioning System). The imaging unit includes a first imaging unit that uses a sky including the celestial body to be imaged as a first imaging range, and a second imaging that includes the first imaging range and is wider than the first imaging range. A second photographing means for photographing the range,
The recognizing unit has a detecting unit that detects the presence of the light emitting moving body by performing a predetermined image analysis of the image captured by the second imaging unit, and the light emission based on the detection by the detecting unit. While recognizing the trajectory of a moving object,
The determination means determines whether or not the light emitting moving body enters the photographing field angle of the first photographing means based on the trajectory information of the light emitting moving body recognized by the recognizing means,
The exposure control means interrupts exposure when it is determined by the determination means that the light-emitting moving body has entered a shooting angle of view of the first imaging means. Item 1. The astrophotography device according to Item 1. The detection means searches for a moving light spot having a moving speed different from the moving speed of the celestial body to be imaged based on a temporal change of the image of the shooting range of the second imaging means, and determines the moving light spot. The astrophotography apparatus according to claim 4, wherein the astrophotography apparatus is detected as a light emitting moving body. An astronomical imaging method using imaging means for tracking a celestial object to be imaged and exposing the sky including the celestial object as an imaging range for exposure for a fixed time,
A recognition step for recognizing the trajectory of the light emitting moving body excluding celestial bodies;
A determination step of determining whether or not the light-emitting moving body enters the shooting angle of view of the imaging means based on the trajectory information of the light-emitting moving body recognized in the recognition step;
An astronomical imaging method, comprising: an exposure control step of interrupting exposure when it is determined in the determination step that the light emitting moving body enters the imaging field angle.  The recognition step includes a detection step for detecting a shooting position and a wireless communication step for performing wireless communication. In the wireless communication step, information on the shooting position detected in the detection step is transmitted via a wireless communication network. Recognizing the trajectory of the light emitting mobile body by transmitting the trajectory information of the issuing mobile body to the server in advance and receiving the trajectory information of the light emitting mobile body corresponding to the imaging position from the server. The astronomical imaging method according to claim 6, wherein:  The astronomical imaging method according to claim 7, wherein in the detection step, the shooting position is detected by measuring a longitude and a latitude of the shooting position by GPS (Global Positioning System). The imaging unit includes a first imaging unit having a sky including the celestial body to be imaged as a first imaging range, and a second image including the first imaging range and wider than the first imaging range. A second photographing means for photographing the photographing range,
The recognizing step includes a detecting step of detecting the presence of the light emitting moving body by performing a predetermined image analysis of an image photographed by the second photographing means, and the light emitting movement based on the detection by the detecting step While recognizing the trajectory of the body,
In the determining step, based on the trajectory information of the light emitting moving body recognized in the recognizing step, it is determined whether or not the light emitting moving body enters the shooting angle of view of the first imaging means,
The exposure control step is characterized in that the exposure is interrupted when it is determined in the determination step that the light-emitting moving body has entered the imaging field angle of the first imaging means. Item 6. The astronomical imaging method according to Item 6.  The detecting step searches for a moving light spot having a moving speed different from the moving speed of the celestial body to be imaged based on a temporal change of the image of the shooting range of the second imaging means, and determines the moving light spot. The astronomical imaging method according to claim 9, wherein the astronomical object is detected as a light emitting moving body. An orbit information collection / delivery server that collects and distributes orbit information of the light-emitting mobile body;
A light emitting mobile body detecting means that is arranged in various places, detects a light emitting mobile body, and transmits the trajectory information of the light emitting mobile body to the trajectory information collection and distribution server;
An astronomical imaging system comprising: the astronomical imaging apparatus according to claim 2, which acquires orbit information of a light emitting moving body from the trajectory information collection and distribution server.

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