WO2011092941A1 - Virtual astronomical observation experience device - Google Patents

Abstract

A virtual astronomical observation experience device is provided which allows the virtual experience of the act of a real astronomical observation, without the complications of installing equipment. A user (M) looks inside the housing (21) of the virtual astronomical observation experience device (10) from an eyepiece unit (24), and can make visual contact with the astronomical image displayed on the display unit (28) configured inside the housing (21), thereby the user (M) can, without malaise, virtually observe astronomical bodies as if using a telescope. In the display unit (28) an astronomical image is displayed in accordance with an observation point and a date inputted into the input device (buttons on the operation unit (29) or GPS receiver unit (31c)), the orientation in the direction of the display unit (28) viewed from the eyepiece (24) as detected by the position detection means (31a), and the inclination of the display unit (28) in the gravitational direction as detected by the inclination detection means (31b);thereby an astronomical observation of present, past, future can be experienced virtually from any location on earth while indoors.

Description

Simulated astronomical observation experience device

The present invention relates to a simulated astronomical observation experience apparatus.

2. Description of the Related Art Conventionally, celestial display devices that optically display celestial bodies composed of stars and constellations are known (see, for example, Patent Documents 1 and 2).
As shown in FIG. 1, the astronomical display device 100 described in Patent Document 1 is used over a user's head, and has a head-mounted body 101 formed in a curved surface following the head shape. . The head-mounted body 101 supports a light-transmitting goggle portion 102 having an overall U-shape so as to be rotatable in the vertical direction. The goggles portion 102 is connected to the key input portion 104 by a cable 103. .

The head wearing body 101 has a GPS (Global Positioning)
System) receiving unit 105, elevation angle detection sensor 106, orientation detection sensor 107, and receiving these detection signals, GPS information (position), elevation angle of head mounted body 101, orientation direction of head mounted body 101, and the like are calculated. A signal processing unit 108 is attached.
In addition, the goggle unit 102 has a pair of left and right LCD display units 109 and 109 facing the user's eyes in the mounted state. Under the control of the signal processing unit 108, GPS information (position), head-mounted body Astronomical data (star name, constellation name, star arrangement, etc.) corresponding to the elevation angle of 101 and the orientation of head-mounted body 101 is displayed on LCD display unit 109.

As a result, when the user wears the celestial display device 100 on the head and turns the head in an arbitrary direction, the celestial data in the direction viewed by the user at the user's position is displayed on the LCD display unit 109. The user can observe stars and constellations in a pseudo manner.

Moreover, in patent document 2, the function of the astronomical display apparatus was provided in the portable terminal device, and astronomical data is displayed based on the position and time of the portable terminal device, and the orientation of the portable terminal device.
Thereby, the user can easily obtain astronomical data in the direction to be observed.

Japanese Patent Laid-Open No. 10-39745 (FIG. 1) JP 2004-13066 A

However, in the astronomical display device 100 described in Patent Document 1, since the user wears it on his / her head, there is a problem that it is troublesome at the time of use. Further, when taking a short break, the astronomical display device 100 must be removed from the head, which is troublesome. Furthermore, since it is a head-mounted type, the user has to point the head in the direction of the constellation or the like to be observed, and there is a problem that it is forced to have a painful posture depending on the direction of the constellation or celestial body to be displayed.

On the other hand, in the mobile terminal device described in Patent Document 2, the user only looks at the liquid crystal display plate of the mobile terminal device, and is easier to use than the astronomical display device 100 of Patent Document 1, Although there is no compelling attitude, there is a problem that it is impossible to experience the atmosphere of actual astronomical observation because it is significantly different from actual astronomical observation.

Therefore, the present invention has been made in view of the above-described problems, and provides a simulated astronomical observation experience apparatus that is not bothersome to wear and that allows a simulated experience of actual astronomical observation.

In order to solve the above-described problem, a pseudo astronomical observation experience device according to the present invention includes a housing, an eyepiece that allows the user to visually recognize the inside of the housing by bringing his / her eyes close to each other, and the housing The display unit that is visible through the eyepiece unit, the input unit that can input at least one of the observation position and the date and time, and the direction in which the display unit exists is directed to the eyepiece unit. From the input unit, an azimuth detecting unit that detects an azimuth, an inclination detecting unit that detects an inclination of the display unit with respect to the gravitational direction, a storage unit that stores data relating to an astronomical image including data for displaying an astronomical image, and the input unit According to the input observation position and / or date and time, the azimuth detected by the azimuth detecting means, and the tilt detected by the tilt detecting means, data relating to the celestial image stored in the storage unit is stored. There characterized by having a celestial image display processing means for displaying an astronomical image on the display unit.

In the above configuration, it is possible to adopt a configuration having an external output terminal capable of outputting the celestial image displayed on the display unit to an external display device.

In the above configuration, the display unit includes a cursor display processing unit that displays a cursor over the celestial image, and the data related to the celestial image stored in the storage unit includes at least constellation or celestial name data, constellation picture , Data for displaying constellation lines, data on the area occupied by the constellation or celestial body on the celestial sphere determined so as not to overlap each other for each constellation and celestial body, and not overlapping each other Cursor position determining means for determining which constellation or celestial body occupies the area occupied on the celestial sphere of the constellation or celestial body based on data relating to the area occupied by the constellation or celestial body defined on The image display processing means changes the display state of the celestial image to data related to the celestial image in response to an input from the input unit. Therefore, the constellation or celestial name, constellation picture, and constellation lines are all displayed, and the constellation or celestial name is not displayed, and the constellation of the area where the cursor is determined by the cursor position determination means or A state in which the constellation or the name of the celestial body is displayed only for the celestial body, and a state in which the constellation line is not displayed and the constellation line is displayed only for the constellation in the area where the cursor is determined by the cursor position determining means. The structure which switches between can be employ | adopted.

According to the simulated astronomical observation experience device of the present invention, the user looks inside the case of the simulated astronomical observation experience device from the eyepiece, and displays the celestial image displayed on the display unit provided inside the case. Since it is visually recognized, there is no hassle of wearing it, and it looks as if the celestial object is being observed using a telescope, and it is possible to experience astronomical observation without a sense of incongruity.
In addition, the display unit displays the observation position and date and time input from the input unit, the azimuth detected by the azimuth detecting means, and the celestial image corresponding to the inclination detected by the inclination detecting means, so that it can be used indoors. While living, you can experience astronomical observations in the past, the future, the future, and anywhere on the earth.

It is the perspective view which saw through the conventional astronomical display apparatus. It is a perspective view which shows the whole pseudo | simulation celestial body observation experience apparatus of this invention. It is a perspective view which shows the state which removed the apparatus main body from the base. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2. It is the top view seen from the V direction in FIG. It is a block diagram which shows a control system. It is a perspective view which shows the use condition which the user hold | gripped the apparatus main body. (A)-(C) are explanatory drawings showing examples of display modes of celestial images displayed on the liquid crystal display panel.

Hereinafter, the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 2 to 5, the simulated astronomical observation experience device 10 according to the embodiment of the present invention includes a device main body 20 and a pedestal 40 on which the device main body 20 is detachably fixed and placed. .

The apparatus main body 20 has a casing 21 that imitates a telescope. The casing 21 is fixed to a pedestal 40 or held by a user, and a base portion 22 like a telescope barrel. A cylindrical tubular portion 23 projecting from 22 is provided. The cylindrical part 23 has an outer cylinder 23a and an inner cylinder 23b whose interior is space, and can be expanded and contracted as a whole. In the present embodiment, the distal end of the outer cylinder 23 a that is the distal end of the cylindrical portion 23 is closed by the lid 23 c, and something cannot be visually recognized through the cylindrical portion 23.

The base 22 has, for example, a box shape with an oval cross section, and a pair of eyepieces 24, 24 (see FIG. 4) is provided on one side surface of the semicircular shape, and the outside of each eyepiece 24. Is attached with an eyepiece lens 25 for hitting the eyes of the user. A soft eyepiece 25a is attached to the eyepiece 25 to protect the user. As shown in FIG. 4, a cylinder 26 is provided inside each eyepiece 24 so as to penetrate the base 22, and a main board 27 is attached to the tip of the cylinder 26. On the front side of the main board 27, that is, the eyepiece lens 25 side, a liquid crystal display board 28 as a display unit is provided at a position where the user can visually recognize through the eyepiece part 24, and is electrically connected to the main board 27. Yes.

When the user grips the apparatus main body 20, an operation portion 29 is provided at a position on the base portion 22 that can be easily operated with the gripped hand or the other hand, for example, on the upper surface of the connection portion between the base portion 22 and the cylindrical portion 23. ing. The operation unit 29 is provided with various operation buttons and is connected to the main board 27. For example, as shown in FIG. 5, a menu button 29a for displaying a menu on the liquid crystal display panel 28, a menu selection, a cross button 29b for moving the cursor 37 (see FIG. 8) up and down, left and right, zooming the celestial sphere, etc. A determination button 29c for determining a menu and the like, a cancel button 29d for canceling the determination and the like, and a shooting button 29e for recording the celestial image displayed on the liquid crystal display board 28 as image data (“shoot”) are connected. . Each button of the operation unit 29 also functions as an input unit for inputting an observation position and a date and time when performing pseudo celestial observation with the simulated astronomical observation experience apparatus 10.

As shown in FIG. 4 and FIG. 6, a sensor unit 31 is provided inside the base unit 22, and detects the direction in which the direction in which the liquid crystal display panel 28 exists is viewed from the eyepiece unit 24. It has a three-axis magnetic azimuth sensor 31a as detection means, a three-axis acceleration sensor 31b as inclination detection means for detecting the inclination of the liquid crystal display panel 28 with respect to the direction of gravity, and a GPS receiver 31c for detecting the position of the apparatus body 20. Signals detected by these sensors and the like are sent to the main board 27. Note that the current position of the device main body 20 detected by the GPS receiver 31c can be used as an observation position when simulating astronomical observations in the simulated astronomical observation experience apparatus 10, so that as an input unit for inputting the observation position Is also functioning.

A jack panel 32 connected to the main board 27 is provided on the front surface of the base 22. The jack panel 32 is provided with an AV jack 32a and a power switch 32b which are external output terminals for outputting astronomical images displayed on the liquid crystal display panel 28 to an external display device such as a television. In addition, an AC adapter jack, earphone jack, etc. are also provided.

A battery box 33 as a power source and a speaker 34 are provided below the base 22 and are connected to the main board 27. Further, a screw hole 35 for fixing the apparatus main body 20 to the pedestal 40 is provided on the lower surface of the base portion 22.
In addition, it is desirable to provide a finger-hanging portion 36 on the side surface of the base portion 22 so that it can be easily gripped and to prevent the apparatus main body 20 from falling.

The pedestal 40 has a base plate 41 which is, for example, a disk, and a rotating portion 42 is provided on the base plate 41 so as to be rotatable with respect to the base plate 41. A support portion 43 that supports the base portion 22 of the apparatus main body 20 is provided on the convex portion 42a protruding upward (upward in FIG. 4) from the rotation portion 42 so as to be rotatable in the vertical direction by a rotation shaft 42b.

The support portion 43 includes a leg portion 43a that is rotatably supported by the rotation shaft 42b, and a receiving portion 43b that is connected to the leg portion 43a and supports the apparatus main body 20. The support surface of the receiving portion 43b has a shape along the bottom surface shape of the base portion 22 of the apparatus main body 20, and a fixing screw 44 for fixing the apparatus main body 20 is provided. Accordingly, the fixing screw 44 is screwed into the screw hole 35 of the base portion 22 of the apparatus main body 20 to fix the apparatus main body 20.
In addition, it is desirable to provide a locking device on the rotating shaft 42b so that the elevation angle of the device body 20 with respect to the base 40 can be fixed at a predetermined angle.

Next, the control system of the simulated astronomical observation experience apparatus 10 will be described with reference to FIG.

The main board 27 as a control device includes a central processing unit (CPU) 27a, a timer 27b, a ROM 27c, and a RAM 27d. The timer 27b detects the current time. The ROM 27c stores programs for performing various calculations for operating the CPU 27a and data relating to celestial images, and functions as a storage unit. Various data stored in the ROM 27c are appropriately read according to commands from the CPU 27a. In the RAM 27d, data input from the buttons of the operation unit 29, calculation results, and the like are appropriately stored, and the stored data is read into the CPU 27a as necessary. The data related to the celestial image stored in the ROM 27c includes, in addition to data for displaying the celestial image, at least constellation or celestial name data, constellation picture, data for displaying the constellation line, each constellation and each celestial object. Includes data relating to the area occupied by the constellation or celestial body determined on the celestial sphere so as not to overlap each other.

The CPU 27a is connected with a menu button 29a, a cross button 29b, an enter button 29c, a cancel button 29d, and a shooting button 29e of the operation unit 29. When the menu button 29a is pressed, the CPU 27a displays a menu including various options on the liquid crystal display panel 28 based on a program stored in the ROM 27c. At that time, when the cross button 29b is pressed, the currently selected option in the menu can be changed, and when the enter button 29c is pressed, execution of the currently selected option is determined. The cancel button 29d switches to the previous screen or returns the page. In addition, the menu has options for inputting the observation position and date and time, and at that time, the observation position and date and time can be input by combining the cross button 29b, the decision button 29c, and the cancel button 29d. In addition, during the pseudo celestial observation, when the cross button 29b is pressed, the cursor 37 can be moved with respect to the celestial sphere, and the celestial sphere can be zoomed in and out. The shooting button 29e records the celestial image displayed on the liquid crystal display panel 28 as image data, that is, “shoots”, and transmits the data (imaging data) to the CPU 27a.

Further, the CPU 27a is connected to the three-axis magnetic direction sensor 31a, the three-axis acceleration sensor 31b, and the GPS receiver 31c of the sensor unit 31. The triaxial magnetic direction sensor 31a detects the direction in which the liquid crystal display panel 28 exists when viewed from the eyepiece 24, and the triaxial acceleration sensor 31b detects the inclination of the liquid crystal display panel 28 with respect to the gravity direction. The GPS receiver 31c detects the current position of the apparatus body 20, and each detection signal is transmitted to the CPU 27a. The GPS receiver 31c is not essential, and the user may manually input the current position of the apparatus body 20 as the observation position from a menu displayed by pressing the menu button 29a described above. Further, a liquid crystal display panel 28 is connected to the CPU 27a, and displays menus, celestial images, displayed celestial objects, constellation data, and the like based on programs and data stored in the ROM 27c. Further, the CPU 27a displays a cursor 37 superimposed on the celestial image displayed on the liquid crystal display panel 28 based on the program stored in the ROM 27c. In addition, the CPU 27a determines which constellation or celestial object the cursor 37 is based on the program stored in the ROM 27c and the data related to the constellation or celestial object occupied on the celestial sphere determined so as not to overlap each other. Is in the area occupied on the celestial sphere, that is, which constellation or celestial body the cursor matches.

Next, the operation of the simulated astronomical observation experience apparatus 10 will be described.
As the usage state of the simulated astronomical observation experience apparatus 10, the apparatus main body 20 is fixed to the base 40 as shown in FIG. 2, and the apparatus main body 20 is detached from the base 40 as shown in FIG. As shown, the user M can select the handy use that is held and used. The fixed use is suitable for displaying by connecting a large display device such as a television to the AV jack 32a of the jack panel 32 when a large number of users look at the celestial bodies at the same time, for example, at school. Handy use is suitable when the user wants to obtain an astronomical observation atmosphere individually, and it is convenient to use the battery box 33 as a power source.

In use, first, the power switch 32b of the jack panel 32 is turned ON, and the liquid crystal display panel 28 is viewed through the eyepiece lens 25. When used for the first time, initial settings such as setting the current date and time, setting the current location, and the like are performed using the buttons of the operation unit 29.

Next, the menu button 29a is pressed to display the main menu, and the use mode is selected. As the use mode options, for example, “astronomical observation mode”, “star search mode”, “constellation puzzle mode” and the like can be selected.

First, the “celestial observation mode” will be described. The “celestial object observation mode” is a mode for freely observing the celestial object projected on the celestial sphere. On the liquid crystal display panel 28, an observation date and time, a cursor 37, and an astronomical image are displayed that indicate when the displayed celestial sphere is the celestial sphere.
As shown in FIGS. 8A to 8C, as a display state of the celestial image displayed on the liquid crystal display panel 28, for example, the constellation line SL is not displayed, and the CPU 27a matches the cursor 37. The constellation line SL is displayed only for the constellation determined to be present (see FIG. 8A) and the name SN of the constellation or celestial body is not displayed, and the CPU 27a determines that the cursor 37 matches. A state in which the constellation or celestial name SN is displayed only for the constellation or celestial object (see FIG. 8B), and a state in which all the constellation or celestial name SN, constellation picture, and constellation line SL are displayed (see FIG. C)), and the display state can be switched by operating a button on the operation unit 29.

Next, the sensor mode and the cursor mode are selected using the menu button 29a, the cross button 29b, the enter button 29c, and the like.
Here, the sensor mode refers to the orientation in which the direction in which the liquid crystal display panel 28 exists as viewed from the eyepieces 24 and 24 and the inclination of the liquid crystal display panel 28 with respect to the direction of gravity are mounted on the apparatus main body 20. A mode in which an actual celestial body in the direction in which the liquid crystal display panel 28 is present when viewed from the eyepieces 24 and 24 is displayed on the liquid crystal display panel 28 is detected by the three-axis magnetic direction sensor 31a and the three-axis acceleration sensor 31b. Say. Therefore, the above-mentioned handy use is suitable for the sensor mode. The cursor mode is a mode in which the cursor 37 is moved with respect to the celestial sphere using the cross button 29b of the operation unit 29, and the displayed celestial body is moved up, down, left, and right. Therefore, the fixed use described above is suitable for the cursor mode.

When starting observation (pseudo-observation), first set the observation date and time. However, if it is desired to observe an astronomical object at the current date and time, the timer 27b keeps track of time, so it is not necessary to input the date and time. On the other hand, when it is desired to observe an astronomical object at a date and time different from the current date and time, using the buttons of the operation unit 29, the observation date and time input is selected from the menu options, and the date and time when observation is performed is input. For example, it can be specified in a range from January 1, 1900 to December 31, 2099, and as a result, past, present, and future astronomical observations can be performed.

Next, the observation location is set. When observing a celestial body at the current location, the current location detected by the GPS receiving unit 31c, or if the GPS receiving unit 31c is not present, the current location set at the initial setting is used as the observation location, and therefore no input of the observation location is necessary. On the other hand, when it is desired to observe an astronomical object at an observation location different from the current location, the observation location input is selected from the menu options using the buttons of the operation unit 29, and the observation location is input. For example, it is possible to input the names of places in Japan and foreign countries registered as observation locations, or input the latitude and longitude of the observation locations. This makes it possible to experience astronomical observations at any location in the world. That is, each button of the operation unit 29 and the GPS receiving unit 31c correspond to the “input unit” according to the present invention.
In addition, as a menu option, an option capable of selecting whether the horizon is displayed or not may be provided. By setting the horizon to non-display or transparent, celestial bodies that are originally hidden under the horizon and cannot be seen can be displayed on the liquid crystal display panel 28 and observed.

The displayed celestial information (constellation or celestial name, constellation line, etc.) can be selected to be displayed or hidden using a button (for example, the enter button 29c) of the operation unit 29. In the displayed celestial image, the planets and the moon of the solar system are displayed larger than the size that can be seen when observing actual celestial objects, and serve as landmarks. It may also be possible to observe the moon phases.
The displayed celestial image is recorded as image data using the shooting button 29e of the operation unit 29, that is, it can be “photographed” in a pseudo manner, and the recorded image data (pseudo “photographed photo”). Can be created to create an album.

Next, the “Look for Stars Mode” will be explained. The “search for star mode” is a mode in which each button of the operation unit 29 is used to select and search for a target star from a list stored in advance or later. Since an arrow indicating the direction in which the target star is present is displayed on the liquid crystal display panel 28, in the sensor mode in handy use, the direction in which the liquid crystal display board 28 exists as viewed from the eyepieces 24 and 24 is indicated by the arrow. When the apparatus main body 20 is moved so as to be directed in the direction of, the target star can be displayed on the liquid crystal display panel 28. In the cursor mode in fixed use, the target star can be displayed on the liquid crystal display panel 28 by moving the cursor 37 in the arrow direction with respect to the celestial sphere using the cross button 29b of the operation unit 29. it can. When the target star is displayed, it can be photographed by the photographing button 29e and recorded as image data.

Next, the “constellation puzzle mode” will be described. The “constellation puzzle mode” is a mode in which a constellation having the same shape as the selected constellation is searched from the celestial sphere and applied like a puzzle. In the “constellation puzzle mode”, the user searches for a constellation by changing the direction in which the liquid crystal display panel 28 exists as viewed from the eyepieces 24 and 24 by moving the device body 20. Can only be used.

Also, when using the simulated astronomical observation experience device 10, music (BGM) can be played from the speaker.

As described above, according to the simulated astronomical observation experience device 10 according to the present invention described above, the user M is provided inside the casing 21 as viewed from the eyepiece 24 of the casing 21 of the simulated astronomical observation experience apparatus 10. Since the celestial image displayed on the liquid crystal display panel 28 is visually recognized, it is as if the celestial object was observed using a telescope, and the celestial object can be simulated and experienced without any sense of incongruity. The liquid crystal display panel 28 also has an observation position and date / time input from the input unit (each button of the operation unit 29 or the GPS receiving unit 31c) and the direction (eyepiece unit 24) detected by the three-axis magnetic direction sensor 31a. , 24, the direction in which the liquid crystal display panel 28 is present) and the tilt detected by the triaxial acceleration sensor 31b (the tilt of the liquid crystal display panel 28 with respect to the gravitational direction) Since it is displayed, it is possible to observe a celestial body that can be seen from the present, the past, the future, and any place on the earth while staying indoors.

Further, by connecting the AV jack 32a to a display means such as a television, the celestial image displayed on the liquid crystal display panel 28 of the simulated astronomical observation experience device 10 can be displayed. Suitable for school education.

Furthermore, the display state of the celestial image can be switched to various states according to the purpose of use. That is, according to the operation of the button on the operation unit 29, the display state of the celestial image is changed to a state where all the constellation or celestial name, constellation picture, and constellation lines are displayed, and the constellation or celestial name is not displayed. , Between the state where the constellation or celestial name is displayed only for the constellation or celestial object to which the cursor 37 matches, and the state where the constellation line is not displayed and the constellation line is displayed only for the constellation that the cursor 37 matches. Can be switched.

The preferred embodiment of the present invention has been described in detail above, but the simulated astronomical observation experience device 10 according to the present invention is not limited to the above-described embodiment, and the present invention described in the claims of the utility model registration. Various modifications and changes are possible within the scope of the gist.

10 Pseudo Astronomical Observation Experience Device 21 Case 24 Eyepiece 28 Liquid Crystal Display (Display)
31a 3-axis magnetic direction sensor (direction detection means)
31b 3-axis acceleration sensor (tilt detection means)
32a AV jack (external output terminal)
37 Cursor M User

Claims (3)

A housing, an eyepiece that allows the user to view the inside of the housing by bringing his / her eyes close to each other, a display provided in the housing and visible through the eyepiece, and an observation position or date / time An input unit capable of inputting at least one of the above, an orientation detection means for detecting an orientation in which the direction in which the display unit exists is directed to the eyepiece, and an inclination of the display unit with respect to the gravitational direction An inclination detecting means for storing, a storage section storing data relating to the celestial image including data for displaying the celestial image, an observation position and / or date and time input from the input section, and the azimuth detecting means There is an astronomical image display processing means for displaying a celestial image on the display unit using data relating to the celestial image stored in the storage unit according to the azimuth and the tilt detected by the tilt detecting unit. Pseudo astronomical observation experience and wherein the. The simulated astronomical observation experience device according to claim 1, further comprising an external output terminal capable of outputting the celestial image displayed on the display unit to an external display device. The display unit includes a cursor display processing unit that displays a cursor over the celestial image, and the data related to the celestial image stored in the storage unit includes at least constellation or celestial name data, constellation picture, constellation line. Data for display, data on the area occupied by the constellation or celestial object on the celestial sphere determined so as not to overlap each other for each constellation and celestial object are included, and each constellation and celestial object are determined not to overlap each other. The celestial image display processing means includes cursor position determination means for determining which constellation or celestial object occupies the area occupied on the celestial sphere based on data relating to the area occupied by the constellation or celestial object on the celestial sphere. In response to an input from the input unit, the display state of the celestial image is changed to a constellation based on data relating to the celestial image. Is the state in which all the names of celestial bodies, constellation pictures, and constellation lines are displayed, and the names of constellations or celestial bodies are not displayed, but only for the constellations or celestial bodies in the area where the cursor is determined by the cursor position determination means. Between the state in which the name of the constellation or celestial body is displayed and the state in which the constellation line is not displayed and the constellation line is displayed only for the constellation in the area where the cursor position is determined by the cursor position determination means. The simulated astronomical observation experience device according to claim 1 or 2, wherein switching is performed.

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