Astronomy Tools.
A planetarium in your smartphone.

This software will help the amateur astronomer.
Now is free.
For donate see here => http://astronomytools.blogspot.com/
250,000 stars.(SAO catalogue)

Optionnal.
2,500,000 stars
Download the file here and copy this in the folder sdcard/astrotools.
http://www.alphortress.net/astrotools/dbraf.db

NGC & IC (13000 objects) with filter.
Messier catalog.
Position of the planets.

Fiel of view Eyepiece and/or CCD/EOS.

Height & azimuth in real time.
Plotting Aid differential representation of coordinated circles refer to RA and DEC.

Search and filter based on the different catalogs.

GPS position.
more => http://astronomytools.blogspot.com/
Keywords: astronomy, , stars, constellations, galaxy, ngc, ic, telrad, planetarium, messier, skymap.

此版本中的新功能：