Sky map (Formerly =Google Sky) is a feature for Google Earth and an online sky/outer space viewer. It was created in 2007 by google then donated to Sky Map Devs and also become a open source.
The application allows users to view a collaboration of images from NASA satellites, the Sloan Digital Sky Survey, and the Hubble Telescope.

SkyMap organizes the objects it shows them into layers:-
It shows you


[*] Stars
[*] Constellations
[*] Messier Objects
[*] Planets
[*] Meteor Showers



This App allow you to search specific Planets and Stars by name,
It allow you to see Sky at time of other then Present (Year 1900 to 2100)
Gallery- In gallery it shows some photos taken by Hubble telescope.

Sensors this App use is Compass, Accelerometerator, Gyroscope, rotation, GPS. If your phone dont have those still you can use it in manual Mode.

If you have interest in Sky or science then you should try this App
[img]http://fscl01.fonpit.de/userfiles/7280844/image/forum/unnamed-1472312961122.jpg[/img]
[img]http://fscl01.fonpit.de/userfiles/7280844/image/forum/unnamed1.jpg[/img]
[img]http://fscl01.fonpit.de/userfiles/7280844/image/forum/unnamed2.jpg[/img]
[img]http://fscl01.fonpit.de/userfiles/7280844/image/forum/unnamed3.jpg[/img]
[img]http://fscl01.fonpit.de/userfiles/7280844/image/forum/unnamed4.jpg[/img]

App size is just 3.60 MB
play Store Link for App Download https://play.google.com/store/apps/details?id=com.google.android.stardroid
Link for Emulator or APK File Download http://apkdl.in/app/details?id=com.google.android.stardroid
Access Web version of http://google.com/sky Google Sky

I'm impressed but this will guzzle your data like