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> Spiral galaxy NGC 634

Spiral galaxy NGC 634

author: NASA/ESA/Novapix

reference: a-gax06-34001

Image Size 300 DPI: 25 * 15 cm

NGC 634 is located 250 millions light years away in the constellation of Andromeda. This spiral galaxy was discovered back in the nineteenth century by French astronomer Édouard Jean-Marie Stephan, but in 2008 it became a prime target for observations thanks to the violent demise of a white dwarf star. The type Ia supernova known as SN2008a was spotted in the galaxy and briefly rivalled the brilliance of its entire host galaxy but, despite the energy of the explosion, it can no longer be seen this Hubble image, which was taken around a year and a half later.

Keywords for this photo:

2011 - ANDROMEDA - ASTRONOMY - GALAXY - HST - HUBBLE SPACE TELESCOPE - NGC 634 - SPIRAL GALAXY - STAR -