Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2239  ·  NGC 2244  ·  Rosette nebula  ·  The star 12Mon
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Caldwell 49 - Rosette Nebula, Bruce Rohrlach
Caldwell 49 - Rosette Nebula
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Caldwell 49 - Rosette Nebula

Getting plate-solving status, please wait...
Caldwell 49 - Rosette Nebula, Bruce Rohrlach
Caldwell 49 - Rosette Nebula
Powered byPixInsight

Caldwell 49 - Rosette Nebula

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Description

The Rosette Nebula (AKA Caldwell Object 49) in the constellation of Monoceros as it looks with 5 hours of integrated exposure through narrowband filters (Hydrogen Alpha, Oxygen OIII and Sulphur SII) over 2 nights with the sensitive ASI1600mm Pro.

220 x 30sec Ha, 220 x 30sec OIII, 160 x 30 sec SII.

The next step is to get my Off Axis Guider working, it has been attached for a couple months now but not yet in use.

This is the central core of the Rosette Nebula, located about 5000 LY from earth. The entire nebula is around 5 times the visual area of the full moon. An array of dark Bok globules (dense dark pillar-like aggregations of cold gas and dust within which stars are condensing) occur around the left of the central gas-depleted core of the nebula, and an inflating ionised gas bubble can be seen just left of the brightest star, where gases are being blown out by the stellar wind emanating from several internal O-type stars.

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Caldwell 49 - Rosette Nebula, Bruce Rohrlach