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Astr110 Photography Projects, Spring 2006

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Christmas Tree Cluster, Ben Schaafsma

Christmas Tree Nebula

The Christmas Tree Cluster, also known as Open Cluster NGC 2264 or the Xmas Tree Cluster. The Christmas Tree Cluster is an open cluster in the Monoceros constellation. It was discovered by William Herschel in 1784. The cluster is located about 800 parsecs or 2,600 light years away from Earth.

The Christmas Tree Cluster is sometimes referred as a single astronomical object along with the Cone Nebula with the name of NGC2264.. However, the designation of NGC 2264 in the New General Catalogue refers to both objects and not the cluster alone

The Christmas Tree Cluster is *2.4 kly from Earth and has a linear size of .0014 kly or 1.4 ly.

*kly = kilolightyear

Wikepedia. http://www.wikipedia.org

Right Ascension (J2000) 06:41:26
Declination (J2000) +09:52:43
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

March 13 (R,V)
March 20, 2006 (C)
April 8, 2006 (B)