This Sunday marks the twenty-first anniversary of Hubble's launch on board the space shuttle Discovery. Current NASA Administrator Charles Bolden piloted that mission. The Space Telescope Science Institute is celebrating with a beautiful shot of a spiral galaxy distorted by its companion into a rose shape. The three-filter (UV, blue and red) composite was obtained on 17 December of last year.
Arp 273 is approximately 300 million light-years away in the far end of the constellation Andromeda, less than two degrees from the border with Triangulum. The pair's constituents are known individually as UGC 1810 and UGC 1813. According to Starry Night Pro the magnitudes are 13.5 and 15.2 respectively. Robert Nemiroff and Jerry Bonnell believe Arp 273 may be an good indication of what a future Milky Way/Andromeda encounter may resemble.
Halton Arp created the catalog of peculiar galaxies while working at Mount Palomar and Mount Wilson.
More information at:
http://www.nasa.gov/mission_pages/hubbl ... -rose.html
More about Halton Arp:
The Milky Way is but one of billions.
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