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Astronomical Observatory: Cool Images

Astr110 Photography Projects, Spring 2005

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Galaxy M109, Timm Bloem

Galaxy M109

This image is the M109 Galaxy in Ursa Major which is NGC 3992. The galaxy is estimated to be 55 million light years distant in constellation of the Ursa Major, 40' SE of the star Gamma Ursae Majoris. It is said to be quite easily spotted with binoculars, although only as a hazy distant path.

The M109 Galaxy was discovered by Pierre Mechain on March 12, 1781 and was initially classified by Charles Messier as a 99. Later, William Herschel found this galaxy independently on April 12,1989 and registered it as a 9.8 with low surface brightness. For a another look at M109, please see below:

Right Ascension (J2000) 11h 57m 36.2s
Declination (J2000) +53°22'31"
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter

60 seconds each in R,V,C & 120 secs (B)

Date observed

March 08, 2005 (BVRC)

This wide-field image of Galaxy M109 was taken in Southern France with a SBIG-ST-8E / CFW camera on August 2, 2005.







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