"Though my soul may set in darkness, it will rise in perfect light I have loved the stars too fondly to be fearful of the night."



NGC 2244 The Rosette Nebula
Right Ascension 6h 33m 45s - Declination +4° 59′ 54″

Imaging Telescope or Lens: Taken with a Primalucelabs AIRY Apo 65F 420mm f/6.5 Astrograph
Camera SBIG STF 8300 CCD Mono, Filter's Astrodon Narrowband Ha 5nm

NGC 2244 The Rosette Nebula (also known as Caldwell 49) is an emission nebula, a large star forming region located in the constellation Monoceros the Unicorn.
It is one of the largest nebula in our galaxy three times as large as the Orion Nebula. The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 130 light years in diameter. This cluster has several O-type stars, superhot stars that generate large amounts of radiation and stellar wind. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estermated to be around 10,000 solar masses.

Alltogther, approximately 2500 young stars lie in this star forming complex, including the massive O-type stars HD 46223 and HD 46150, which are primarily responsible for blowing the ionized bubble. Most of the ongoing star - formation activity is occuring in the dense molecular cloud to the south east of the bubble.

The age of the cluster has been estermated to be less than 5 million years. The brightest star in the cluster is 12 Monocerotis, a for-ground star K-class giant. The two brightest stars in NGC 2244 are 400,000/450,000 times more luminous than the Sun and roughly 50/60 times more massive. The hot stars in the cluster are also responsible for the central hole in the Nebula.


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