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Rosette Nebula

Posted: February 14th, 2012, 6:16 pm
by Christopher K.
Today's APOD shows the beautiful Rosette Nebula. It's by Brian Davis; I don't think I've heard of him.

The four "lobes" of the flower were recorded in the New General Catalog as 2237, 2238, 2239 and 2246. However, in speaking and writing of the nebula most simply refer to it as NGC 2237. It's 5000 light-years away in Monoceros.

The Rosette encloses NGC 2244, a star cluster with six members. The stars' winds have created a opening.

This is the time of the year from our latitude for looking at the Rosette Nebula, it being less than ten degrees from Betelgeuse. In good binoculars and dark skies one should be able to see a faint glow around NGC 2244. Twenty- to thirty-centimeter telescopes may reveal the opening at the center.

The image:

More information:
Burnham's Celestial Handbook, pp. 1196-1201. ... ebula.html

Re: Rosette Nebula

Posted: May 15th, 2014, 10:03 pm
by Christopher K.
A picture of the Rosette from Dennis Roscoe is slide number one in the collaborative gallery from Time Magazine and the Astronomical League. Roscoe got the image while in Waukesha, Wisconsin.

Re: Rosette Nebula

Posted: April 11th, 2015, 7:48 pm
by Christopher K.
The 25 February APOD is of the Rosette Nebula. Though the object in toto is called NGC 2237 in most references, Burham rightly points out that it actually has four NGC designations (2237, 2238, 2239 and 2246)! The brightest member of the stellar congregation surrounded by the Rosette is probably G-class 12 Monocerotis, at magnitude 5.9.

25 February APOD: