M109 in Ursa Major (Jim Thommes)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 109 · NGC 3992

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M109 in Ursa Major

Link: http://www.jthommes.com/Astro/M109.htm

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M109 in Ursa Major

Link: http://www.jthommes.com/Astro/M109.htm

North is down in this image. This field shows the barred spiral galaxy M109 (morphology SB(rs)bc). M109 is the dominant galaxy in the Ursa Major Galaxy Cloud also known as the M109 galaxy group. This field contains many other smaller galaxies most of which are background to M109 and not part of its namesake galaxy group. Distance measurements vary from 51 to 74 million light years for M109 but the most recent estimates put the distance at 74 million light years. At the largest (most recent) distance measurement and angular scale at that distance, M109 is a large galaxy spanning over 150,000 light years in diameter. This makes M109 larger then our own Milky Way. The smaller galaxies are identified and highlighted in the annotated image. The Horizontal FOV is 38'

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M109 in Ursa Major

M109 in Ursa Major

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M109 in Ursa Major

M109 in Ursa Major

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