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Robert Chozick | all galleries >> Galleries >> Deep Sky Images > Rosette Nebula in Monoceros
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27-Mar-2022

Rosette Nebula in Monoceros

Paducah Skies Observatory

The Rosette Nebula (also known as Caldwell 49) is a large, circular H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) 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 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. (Wikipedia)

Paducah Skies Observatory is a private observatory SW of Paducah, TX. It sits on 45 acres of native Texas grasslands and mesquite trees. The skies are 21.99 on the light pollution scale (almost Bortle 1).

Takahashi FSQ-106N Quadruplet Fluorite Refractor
ZWO ASI2600MC Pro OSC CMOS camera
Baader Vario Finder mounted as Guidescope
ZWO ASI178MM Guide Camara
Astro Physics 900 GTO mount

24 exposures 4 min each (gain 100/offset 20)

Guided with PHD 2
Captured with The SkyX
Pre-processed and Stacked in Nebulosity 4
Processed in PixInsight and Photoshop full exif


other sizes: small medium large original auto