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Astr112 Photography Projects, Spring 2005

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Intergalactic Wanderer, Michael Smith

intergalacticwanderer

The Intergalactic wanderer, also called the Intergalctic tramp, Globular Cluster NGC 2419, or NGC 2419 is a globular cluster found on the outskirts of the Milky Way. It was discovered by William Herschel on December 31, 1778. The globular cluster is located at about 300,000 light years away from both the sun and the galactic center. It ranks fourth in "intrinsic luminosity " among the globular clusters in our galaxy. At the same time it is faint in the sky since it is so far away, on the outskirts of the Milky Way. The Intergalactic wanderer has a visual magnitude of 10.4, an angular size of 4.1 arc minutes and a linear size of 85 light years.

The globular cluster seen above, commonly referred to as the Intergalactic Wanderer has a reddish if not orangish tint to it. The approximately three hundred thousands stars in the cluster give off an orangish glow which suggests that the cluster is an older cluster rather than a recently born cluster. There appears to be no blue light coming from the Intergalactic wanderer further suggesting the old age of the cluster. The distance of the structure, at 300,000 light years away from the sun is evident when comparing the size of the many stars in the cluster to the larger white stars surrounding it in the photograph. The difference in size between the globular cluster and the white stars brings into view how far away the globular cluster is.

References:
http://www.daviddarling.info/encyclopedia/I/Intergalactic_Wanderer.html.

http://www.ne.jp/asahi/stellar/scenes/object_e/ngc2419.htm

Right Ascension (J2000) 22:29:36
Declination (J2000) -20:48:00
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 60 seconds in C, R, and V. 120 seconds in B
Date observed

April 1, 2005 (C)
March 9, 2005 (BVR)