- Compute Local Apparent Sidereal Time
An online form. Astronomers use local sidereal time because it corresponds to the coordinate right ascension of a celestial body that is presently on the local meridian.
tycho.usno.navy.mil/sidereal.html
- Space Calendar
Covers space-related activities and anniversaries for the coming year, including links to related home pages.
www.jpl.nasa.gov/calendar
- Astronomical Sky Calendar
Provides an astronomical sky calendar with links to various observatories across the world, including Harvard College and the Lick Observatory.
imagiware.com/astro/skycalendar.cgi
- Astronomical Calendar
Make an astronomical calandar by tracing a pole's shadow on the summer and winter solstice, and the equinox.
www.efn.org/~jack_v/AstronomicalCalendar.html
- SkyEye
A guide to the month's celestial events. In Universal Time.
www.obliquity.com/skyeye
- Stig's Sky Calendar
Explore the yearly dance of the Sun, Moon and planets.
www.skycalendar.com/skycal/index.html
- Celestial Times
Provides celestial times and coordinates for each of the nine planets. Site also gives a brief overview of asteroids and meteors.
www.minervatech.u-net.com/celestial/index.htm
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