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Astr110 Photography Projects, Spring 2005

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M65, Ellen Arrowsmith


M65 is a beautiful, yellow-orange spiral galaxy. M65, M66 and NGC 2638 together form the Leo Triplet, which is located in the Leo constellation. The center of M65 consists primarily of a bright center composed of an "old stellar population." New stars are forming in the dust ring surrounding the galaxy center. The dark line, called "the lane" is a line of dust blocking the light behind. The lane helps to give a 3-D perspective to the galaxy disk.

M65 is also known as "Messier Object 65" because it was first observed by Charles Messier on March 1, 1780. Messier described it as a "very faint nebula without stars." M65 is 35 million light years away from earth, its linear size is 71000 light years, and its angular size is 7 arcminutes.


Spiral Galaxy M65

Right Ascension (J2000) 11:19:12
Declination (J2000) 13:03:49
Filters used blue(B), green(V), red(R)
Exposure time per filter

60 seconds in V, 120 seconds in B, 60 seconds in R

Date observed

March 9, 2005.