Astronomical Observatory: External Links

Links to astronomy websites

Basic Astronomy Links

• Phenomena
• Astronomy News
• General Interest
• West Michigan Area
• Educational
• More Extended Astronomy Links

Phenomena

• General
  • From Sky & Telescope Magazine:
    • This Week's Sky at a Glance
    • Observing Highlights
• Solar system
  • Auroral Activity and Auroral Forecast (from Intellicast)
  • Comets (from Sky & Telescope Magazine)
  • Eclipses: past, present, and future
  • Horizons, JPL's On-Line Solar System Data and Ephemeris Computation Service: "Any Body--Anytime"
  • The Planets 2.02 (includes forecasts for Jupiter's red spot)
  • Near Earth Objects
• Stars, Nebulae and Galaxies
  • A planetarium view of the star's and constellations right here and now (For another place, put in a zip code and click on "Fast Forecast" followed by "Astronomy"; for another time enter the new time and click on "change".)
  • Where is that star? Positions of 526 million stars to within a quarter arcsecond from the USNO A2.0 catalog made available by the Lowell Observatory.
  • Where is that star? Positions of over one billion stars together with proper motions from the USNO B1.0 catalog from USNO Flagstaff Station.
  • The Caldwell catalog (Sky & Tel | SEDS)
  • The Messier Catalog
  • Finest NGC objects: by Alan Dyer, by the Saguara Astronomy Club
  • List of bright quasars

Astronomy News

• Current Astronomical News (from Sky & Telescope Magazine)
• Earth and Sky (daily science radio series)
• Space.com
• Space Daily
• Space Weather: Science news and information about the Sun-Earth environment
• Today@NASA (current press releases)

General Interest

• Astronomy Picture of the Day
• Atmospheric Optics Picture of the Day
• Bill Arnett's "The Nine Planets"
• Calvin Hamilton's "Views of the Solar System"
• Hubble Space Telescope pictures
• Light pollution: International Dark-Sky Association
• SkyView, the Internet's Virtual Telescope
• Compare your clock to the NIST atomic clock

West Michigan Area

• Calvin College Observatory
• Grand Rapids Amateur Astronomical Association
• Kalamazoo Astronomical Society
• Muskegon Astronomical Society
• Roger B. Chaffee Planetarium

Educational

• The Analemma
• Fix interactives
• Lunar Phases Web Tool
• The Wildrik Botjes Planetarium
• Ptolemaic System Simulator
• The Small Angle Formula
• Tides: spring and neap

Secondary

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