ASTRONOMY WEB SITES
COMET / ASTEROID INFO
Comet Observation Home Page- http://encke.jpl.nasa.gov
IAU: Central Bureau for Astronomical Telegrams - http://cfa-www.harvard.edu/iau/Ephemerides/index.html
JPL / DASCOM- http://ssd.jpl.nasa.gov/dastcom.html
JPL / Small-Body Orbital Elements - http://ssd.jpl.nasa.gov/sb_elem.html\
Bill Arnett- http://seds.lpl.arizona.edu/billa/tnp/comets.html
Gary Kronk - http://comets.amsmeteors.org/
EPHEMERIDES
JPL / Ephemeris Generator - http://ssd.jpl.nasa.gov/cgi-bin/eph
TIME
NIST - http://www.time.gov
USNO - http://tycho.usno.navy.mil/
LUNAR / ASTEROID OCCULTATIONS
IOTA - http://www.lunar-occultations.com
OTHER
INTERNATIONAL EARTH ROTATIONAL SERVICE - http://www.iers.org/iers
SKY AND TELESCOPE MAGAZINE - http://skyandtelescope.com/
ASTRONOMY MAGAZINE - http://www.astronomy.com
SKYNEWS MAGAZINE - http://www.skynewsmagazine.com
EFSTONSCIENCE - http://www.e-sci.com
KHAN SCOPE CENTRE - http://www.khanscope.com
MEADE - http://www.meade.com
CELESTRON - http://www.celestron.com
SKYWATCHER - http://www.skywatchertelescope.com