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Astr110 Photography Projects, Fall 2006

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Messier Object M110 , Sam Randall


The image I have collected is of the Messier object M110.  The object is an elliptical dwarf galaxy of the Andromeda galaxy; an elliptical dwarf galaxy is a smaller continuum of stars that, in this case, orbits a larger galaxy, Andromeda.  The object is about 2.9 million light years away. M110 has a linear diameter of about 5900 light years and an estimated angular size of seven arcminutes.  The image is a composite of two separate image connected through a mosaic. 

The spectacularly bright object in the center of the image is the core of M110. The clear elliptical shape of the galaxy can be seen in the image from the top to the bottom.The bright core is a dense continuum of stars.  As the object becomes less bright from the center outward the stars in the continuum become less dense.   The faint dark spots that are seen surrounding the galaxy are dust clouds that appear in front of M110 from the massive Andromeda galaxy. The vast amount of stars that have come together to form this fantastic object is truely a natural wonder of our universe.


Messier 110

Astronomy, The Cosmic Journey, 5th edition. William K. Hartmann, Chris Impey.  Wadsworth Publishing Company Belmont, California.

Right Ascension (J2000) 00:40:22.5
Declination (J2000) +40:34:26
Filters used clear(C)
Exposure time per filter 5x60 seconds in C(2 Sets)
Date observed

October 18, 2006 (C)