Physics & Astronomy: Astronomy

The major organization of professional astronomers in North America.

News, meetings, career info

Meteoric phenomena

News, forums, resources

Explore the universe: positions of planets and constellations, view in different wavelengths, listen to podcasts.

Provides visibility times of satellites & their trajectories

Info on asteroids & comets that approach Earth

Latest research on meteorites, planets, and other solar system bodies being made by NASA-sponsored scientists

News, blogs, graphic data: live telescope observations, positioning of spacecraft, a calendar of upcoming near-Earth objects, views of sunspots, & more

Also called WikiSky; very detailed star sky map; ongoing project

Ongoing project to map the universe

News and information about meteor showers, solar flares, auroras, and near-Earth asteroids

You can make an interactive sky chart for any location

Provides a wide range of astronomical data and products (phases of the moon, sunrise, eclipses, calendars, navigation

From NASA; links out to other archives

Data sets in optical, ultraviolet, and near-infrared

Smithsonian/NASA astrophysics data system. Includes citations to journal articles as well.

NASA

Includes Aladin (sky atlas) and VizieR (portal to astronomical catalogs)

What's in the sky?