BABAK TAFRESHI / SCIENCE PHOTO LIBRARY BABAK TAFRESHI / SCIENCE PHOTO LIBRARY
Observing Comet Holmes. Observer with a telescope under a starry sky on the slopes of Mount Damavand, Iran. He is observing the conjunction of Comet Holmes with the star Mirfak (Alpha Persei). Comet Holmes was visible in late October 2007, when it brightened 15 magnitudes (about a million times), equivalent to a magnitude 2 star.
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