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Astr110 Photography Projects, Spring 2008

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Rosetta Nebula (NGC 2244), Melissa Lauffer

Rosetta Nebula

The object pictured is the Rosetta Nebula also known as NGC 2244. The Rosetta Nebula is a vast cloud of dust and gas that is located in the constellation of Monoceros and is about 5000 light years away.  It extends over an area that is 1 degree across or about 5 times the area covered by the full moon.  The nebula gets its red glow from the abundance of hydrogen gas.  Within the nebula are open star clusters which are located at NGC 2244.  These stars are known as super-hot O-type stars which provide the ultraviolet radiation which causes the gas of the nebula to glow. These stars consist of young stars which recently formed from the nebula’s material.  The stars that are the brightest make the nebula shine by exciting its atoms to emit radiation.  The star formation with in this nebula is still in progress, a recent finding of a very young star with a Herbig-Haro type jet was discovered by astronomers at NOAO in January 2004.  The Rosetta Nebula was discovered by John Flamsteed in 1690.

The Rosetta Nebula (NGC2244) can be seen in the upper right hand quadrant of this picture.  The red in the picture represents the hydrogen gas clouds of the nebula.  The pictured portion of the angular size of the nebula is 24 minutes across.  The pictured portion of the nebula is 34 light years in linear size, the nebula is 5000 light years away from Earth.

Rector, T. A. " The Rosette Nebula in Hydrogen, Oxygen, and Sulfur." Astronomy Picture of the Day.

Frommert, Hartmut and Kronberg, Christine. "NGC 2244 and the Rosette Nebula NGC 2237-9." Students for the Exploration and Development of Space. <http://www.seds.org/messier/xtra/ngc/n2244.html>

Cuillandre, J. C. & Fahlman, G. "NGC 2244: A Star Cluster in the Rosette Nebula." Astronomy Picture fo the Day. <http://antwrp.gsfc.nasa.gov/apod/ap000822.html>

"Scientists Find X-Rays from Stellar Winds That May Play a Significant role in Galactic Evolution." Chandra Press Room. <http://chandra.harvard.edu/press/01_releases/press_090601wind.htm>

Right Ascension (J2000) 06:32:24
Declination (J2000) +04:52:00
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 1, 2009 (CBVR)