NGC 2244- Rosette Nebula  1.25.2008
Image Capture Details

Optics:  Meade LX200 14 GPS @ F/2 with HyperStar
Mount: Meade
Camera: Canon Digital Rebel
Filters: Astronomik LP
Exposure:  322X 15 Seconds = 80 Minutes ISO 400
Time: 8.55:PM EST - 10:09PM EST
Location: Waldwick, NJ
© 2008 David A. Trapani
MetropolitanSkies.com
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The Rosette Nebula is a large, circular hydrogen gas
region located near one end of a giant molecular cloud in
the Monoceros region of the Milky Way Galaxy. The open
cluster NGC 2244 is closely associated with the
nebulosity, the stars of the cluster having been formed
from the nebula's matter.

The cluster and nebula lie at a distance of some 5,200
light years from Earth (although estimates of the distance
vary considerably) and measure roughly 130 light years
in diameter. The radiation from the young stars excite the
atoms in the nebula, causing them to emit radiation
themselves producing the emission nebula we see. The
mass of the nebula is estimated to be around 10,000
solar masses.

It is believed that stellar winds from a group of O and B
stars are exerting pressure on interstellar clouds to
cause compression, followed by star formation in the
nebula. This star formation is currently still ongoing.