Comet Book

Comet Book


The Comet Book App clearly shows you when and from which direction Comet can be viewed.

The direction and elevation of Comet can change noticeably in a day due to its fast apparent motion. The moon and a bright planet may be convenient as a guide to find the comet; nevertheless they have a large apparent motion, too.

This App determines where Comet is in the sky when it becomes visible at your observing site.

You can easily start your observation of Comet using Comet Book as a guide to the direction and elevation of the comet.

The following new functions are added to Ver.1.1 Comet Book.

1. Night Vision Mode
Accessing the “Setup” menu and turning on the night vision mode will change the star chart to an amber color.
This prevents your night vision from being affected by the bright screen.

2. Support Page
Help, support page and privacy policy are provided in the Setup menu. The Support Page links you to the Vixen web site.

3. The present latitude and longitude recognized by the Comet Book.
When you view stars in the night sky, the date, time and the present latitude and longitude are essential information to know the direction and altitude of stars and comets. The same information is necessary when you display the star charts using the Comet Book. Pressing the “GPS Receiving Status” icon will show the location of your observing site on a simplified world map.

4. Updating orbital elements for Comet.
The Comet Book updates orbital elements for Comet on startup.


The following new functions are added to Ver.1.2 Comet Book.

With using app in Comet Book, you can directly visit a contributor's page in a campaign “Let's Go Out and Find Comet ISON!”to join the Comet ISON Observer's Report. This page is available in Japanese only.

Recent changes:
If Comet is selected, the illumination of unselected Comet is diminished in order to easily distinguish the selected one from others.
The star chart can be switched to a swipe screen mode in the semicircular star chart and the full screen star chart.
The star chart can be magnified up to 5 times with the pinch-in and pinch-out zoom gestures in the full screen display.
The stars of 6th magnitude and brighter are displayed if the star chart is magnified to 1.2 times and larger in the star chart.
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Free
73
3.7
User ratings
119
Installs
10,000+
Concerns
1
File size
1450 kb
Screenshots
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About Comet Book
The Comet Book App clearly shows you when and from which direction Comet can be viewed.

The direction and elevation of Comet can change noticeably in a day due to its fast apparent motion. The moon and a bright planet may be convenient as a guide to find the comet; nevertheless they have a large apparent motion, too.

This App determines where Comet is in the sky when it becomes visible at your observing site.

You can easily start your observation of Comet using Comet Book as a guide to the direction and elevation of the comet.

The following new functions are added to Ver.1.1 Comet Book.

1. Night Vision Mode
Accessing the “Setup” menu and turning on the night vision mode will change the star chart to an amber color.
This prevents your night vision from being affected by the bright screen.

2. Support Page
Help, support page and privacy policy are provided in the Setup menu. The Support Page links you to the Vixen web site.

3. The present latitude and longitude recognized by the Comet Book.
When you view stars in the night sky, the date, time and the present latitude and longitude are essential information to know the direction and altitude of stars and comets. The same information is necessary when you display the star charts using the Comet Book. Pressing the “GPS Receiving Status” icon will show the location of your observing site on a simplified world map.

4. Updating orbital elements for Comet.
The Comet Book updates orbital elements for Comet on startup.


The following new functions are added to Ver.1.2 Comet Book.

With using app in Comet Book, you can directly visit a contributor's page in a campaign “Let's Go Out and Find Comet ISON!”to join the Comet ISON Observer's Report. This page is available in Japanese only.

Recent changes:
If Comet is selected, the illumination of unselected Comet is diminished in order to easily distinguish the selected one from others.
The star chart can be switched to a swipe screen mode in the semicircular star chart and the full screen star chart.
The star chart can be magnified up to 5 times with the pinch-in and pinch-out zoom gestures in the full screen display.
The stars of 6th magnitude and brighter are displayed if the star chart is magnified to 1.2 times and larger in the star chart.

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User reviews of Comet Book
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Android Market Comments
A Google User
Nov 4, 2013
Has three comets already The developer is a Japanese maker of optical instruments. It will be interesting to see how often they update this with new comets. User guide is online, accessible right from the app.