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Astr110 Photography Projects, Spring 2008

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Star Cluster M50 (NGC 2323), Daniel Lee


Official title of Open Cluster M50(NGC 2323), M50 a star cluster discovered on April 5, 1772 by Charles Messier was a bright arrangement of stars.  It’s categorized as an open cluster which is a looser cluster of stars.  As a brighter cluster it’s nebulae in constellations Monoceros which is on the border of the Canis Major. In estimation it’s about 3,200 light years away.  Unfortunately there are debates on who first discovered the cluster. Supposedly G.D. Cassini says he found it in 1711. 

In accordance to the picture it’s a very bright open cluster.  The arrangement of stars to the bottom right is a clutter of some fairly large stars.  The picture above is a beautiful capture of the open cluster at a bright black and white depiction and shows about over 300 stars that are dim and bright.  Open clusters usually contain hot young stars that are very gaseous. In my personal calculations it’s about 28 arcminutes in angular size.  In linear size it’s 26 light years across. 

Michell J. (1767), An Inquiry into the probable Parallax, and Magnitude, of the Fixed Stars, from the Quantity of Light which they afford us, and the particular Circumstances of their Situation, Philosophical Transactions, v. 57, p. 234–264

Frommert, Hartmut and Kronberg, Christine. "NGC 7293." Students for the Exploration and Development of Space. <http://www.seds.org/MESSIER/xtra/ngc/n7293.html>

Right Ascension (J2000) '07 03 12.00'
Declination (J2000) '-08 20 00.0'
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 5x60 seconds in C, 300 seconds in BVR
Date observed

April 2, 2009 (C)
April 2, 2009 (BVR)