Astronomical Society


iCSC Clear Sky Chart - Free
It is the astronomer's forecast. It shows at a glance when, in the next 48 hours, you might expect clear and dark skies. Similar functionality as the Web version.

HubbleSite - Free
HubbleSite, the online home of NASA’s Hubble Space Telescope, invites you to help choose the world’s most popular Hubble images. Get wallpaper, Hubble facts, and more.

SkyWeek - $1.99
SkyWeek is the new, interactive, mobile version of Sky & Telescope magazine's popular "This Week's Sky at a Glance".

NASA - Free
The first official NASA App invites you to discover a wealth of NASA information right on your iPhone. The NASA App collects, customizes and delivers an extensive selection of dynamically updated information, images and videos from various online NASA sources in a convenient mobile package.
  • NASA Mission Information
  • Live streaming of the NASA TV public channel
  • Launch Information & Countdown clocks
  • Sighting Opportunities (Visible Passes for the ISS and Shuttle)
  • Mission Orbit Trackers
  • NASA Image of the Day
  • Astronomy Picture of the Day
  • NASAImages.org collection of images
  • NASA Videos
  • NASA Twitter Feeds/Mission Updates
  • Facebook® Connect for easy sharing
  • Integrated Twitterâ„¢ client