Comet Hale-Bopp

at the UH Institute for Astronomy

Comet Hale-Bopp is now moving away from the inner Solar System. As it receives less energy from the Sun, the cometary activity is slowing down, the tail is disappearing and the comet will rapidly become too faint to be observed with small telescope. While this marks the end of Hale-Bopp's public performance, it is not the end of the story: we plan to continue observing it as long as possible. The decrease and cessation of a comet's activity give very interesting information on its composition and history, so we are trying to observe comets as far as possible from the Sun. A typical comet nucleus has a diameter of 1 to 10 km, and is extremely dark, so that task is far from easy and requires big telescopes and very long exposures; in the case of Comet Hale-Bopp, we hope a to have an easier task, as we know that the nucleus is very bright. For more information, check out Karen Meech's Distant Comet Reseach page, and for an example of tricky observation, have a look at the faintest Solar System object ever observed: Comet Halley at the distance of Uranus, which is also the last image of that comet.

We will continue to add images and information on Hale-Bopp, so come and visit us again.

Images and Spectra

Images and spectra of comet C/1995 O1 (Hale-Bopp) obtained by University of Hawaii astronomers. (Last images added May 9, 1997).

Other Comet Hale-Bopp WWW documents

These locations have additional up to date information on Comet Hale-Bopp:

IfA documents

Other documents

"Alien Spacecraft," "NASA cover up" and other FAQ usually not answered

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Richard J. Wainscoat --- Olivier R. Hainaut ---

Update: Sun Jul 13 13:48:29 1997 -- Hits: since March 10 17:30