Astronomy Image of the Day
Comet Hale-Bopp Develops a Tail
12 February 1997
P. H. Mikuz and B. Dintinjana (Crni Vrh Obs.,U. Ljubljana)

NASA Astronomy Image of the Day for 12 February 1997
Comet Hale-Bopp has quite a tail to tell already. This remarkable comet was first discovered in 1995, even before Comet Hyakutake. Since then, this erupting snowball continues to fall into our inner Solar System and is starting to put on quite a show. Comets have been known throughout history to show tails that spread across the sky. In the above picture, the blue stream is the ion tail which consists of ions pushed away from the comet's head by the solar wind. The ion tail always points directly away from the Sun. Comet Hale-Bopp is now visible in the morning sky, moving a few degrees each day. Comet Hale-Bopp is expected to be at its best and brightest in late March and early April.
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Image and explanation courtesy of NASA Astronomy Picture of the Day





