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Astr110 Photography Projects, Spring 2008

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Bear Paw Galaxy (NGC 2537), Bryan Keeley

The Bear Paw Galaxy, also known as NGC 2537, is considered an irregular Dwarf galaxy. Dwarf galaxies are the most common type of galaxy found in the universe. Dwarf galaxies are significantly smaller than galaxies like the Milky way which has 200-400 billion stars, Dwarf galaxies have only a few billion stars. The Bear Claw can be found within the Lynx constellation near the Great Bear constellation, hence the name Bear Paw Galaxy (the resemblance probably had an influence as well).

According to the Hubble classification of galaxies the Bear Paw falls under the irregular category of galaxies because it is considered neither spiral nor elliptical morphology. They are unpredictable and there is no known reason for their unusual formation. This galaxy is 15.3 magnitude, class SBT5, and is considered to be a multi-galaxy system. Close examination will show it resembles M51, with one faint arm extending to the companion below. The Bear Paw Galaxy is 0.786 minutes in angular size. Its linear size is 4,530 light years. The Bear Paw Galaxy is 20 Million light years away from us.

 

References:
Davide De Martin (2005-2007) http://www.skyfactory.org/deepskycatalogue/NGC2537.html

"Dwarf Galaxy ." Wikipedia, the free encyclopedia. http://en.wikipedia.org/wiki/Dwarf_galaxy

Bear Paw Galaxy, Megan Smith (2007) http://www.calvin.edu/academic/phys/observatory/images/Astr111.Spring2007/Smith.html

E. M Wilcots and M.K. Prescott, National Radio Astronomy Observatory http://www.nrao.edu/imagegallery/php/level3.php?id=329

The Hubble Classification of Galaxies http://csep10.phys.utk.edu/astr162/lect/galaxies/hubble.html

Right Ascension (J2000) 08:13:12
Declination (J2000) +46:00:00
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 5x60 seconds in CBVR
Date observed

March 14, 2009