Peace for ALL mankind. May ALL live in dignity and with mutual respect for any religious, natural and ideological differences. Viewing from space, war, greed for money and power, corruption, as well as other crime on Earth look so meaningless... just as it is. Remember the devastating earthquake and tsunami in Japan and other places before when ten thousands lost their valuable life. This is a good reason to cease all hostilities and work hand-in-hand. If we do not learn from history, then history will repeat itself and escalate until we are all down to the lowest level of what some call humanity. We need our Earth in peace, Earth does not need us.

Sky Atlas for Android Phones

Sky Atlas is an astronomical database for Android phones with capability of plotting star charts and centering selected celestial objects.

Sky Atlas is neither finger controllable or zoomable planetarium software, nor is it a game!

The application provides basic knowledge of astronomy and is designed for hobby and amateur astronomers, educational purposes and general reference.

In spite of its rich set of data and images, Sky Atlas is constructed in a simple, intuitive concept. There are two major sections, "Atlas Objects" and "References".

"Atlas Objects" contains several lists of celestial objects that can be centered on a equatorial star chart, while "References" contains a collection of astronomical information and simulations.

Essential Features

Atlas Objects

Plots 7,928 naked eye stars,
or 1626 bright stars (much faster)
Constellation lines
Constellation boundaries
Constellation names
Star names
Star plotted in spectral colors
All Messier objects
Over 220 bright & popular deepsky objects
Equatorial Grid
Equator line
Ecliptic line
Plot items can be enabled or disabled
Hertzsprung-Russel diagam
Binary star orbits
Rise, transit, set times
Zoom: 1 to 90° field of view
Save charts to SD card as PNG
Color chart mode
Night view mode
Monochrome chart mode
Searchable objects:
- All 88 Constellations
- Named Stars
- Nearby Stars
- Bright Binary Stars *
- Bright Variable Stars *
- Complete Messier Catalog
- Exoplanets
- Solar System Planets *
- Photographed Asteroids *
- Photographed Comets *
- Bright NGC/IC Objects
- Hubble Objects
- North & South Poles

* NOTE: including current ephemerides

References

Atlas of the Moon
Moon Calendar
Moon Atlas
Day/night terminator map
Rise/set twilight overview
3-D Earth view
Planetary Moons
Pleiades closeup
Meteor showers
Greek Alphabet
Hubble Glossary
Exoplanet discovery stories
Planet exploration timeline
The 12 signs of the Zodiac
Martian Moons
Plutonian Moons

Computations

Galilean Moons
Kepler orbit simulator
Interstellar distances
Space travel simulation
Telescope calculator
Binoculars calculator
Imaging calculator
Scope formulae
Julian date conversion

Application Features

Battery-aware application
No internet connection required
(except for enlarged Hubble images)
No need for GPS, manual location input provided

Operating Environment

Android Phones with O/S 2.1 or higher
1 GHz CPU, 50 MB free memory
Android compatible screen sizes
Tablets not currently tested

Because Sky Atlas provides numerous astronomical images as well as listview icons, it occupies about 10MB working memory, however, owners of Android 2.2 and higher phones may wish to install the application in the memory card.

Please appreciate that this website, too, is work in progress.