Sky's Up
Edited by comet discoverer and author David H. Levy, Sky's Up is the official publication of the AstronomyOuteach network, a non-profit educationa...
勢利眼的意思
DragonCon 2014
In its 28th year, Dragon Con will be held August 29 – September 1, 2014 in Atlanta, GA. Dragon Con is the largest multi-media, popular culture convent...
Scope Companion
Scope Companion is software for computing performance parameters of optical equipment for astronomy, primarily designed for telescope novices and firs...
Planisphere
THIS APP WILL BE DISCONTINUED SHORTLY.If you own a tablet, please consider the applications "Solunaero" or "AsteriaCoeli" or "Sky Atlas for Tablets", ...
Sky Atlas for Tablets
Please also consider Asteria Coeli, the latest astronomical atlas software containing all functions in this Sky Atlas, plus much more - and is cheaper...
Comet Watcher
Comet Watcher is software for the purpose of following comets currently of interest, C/2011 L4 (Panstarrs), C/2012 F6 (Lemmon), C/2013 A1 (Siding Spri...
ScopeTimer Plus
ScopeTimer Plus is companion software for your telescope which keeps you posted on the most important astronomical times during celestial observations...
Jupiter Widget
A Jovian moons monitor in the form of a 4x1 phone home screen widget, ideal for quick reference and observation planning.The widget provides the posit...
Physical Mars
"Physical Mars" is designed to assist telescope observation and imaging of the planet Mars. Martian ephemerides are provided for real-time or a select...
Lunar Odometer
A "fun-fact" odometer monitoring the motion of the moon in the form of a 2x2 home screen widget.Besides ephemeris data, such as moon age, phase, size ...