The Rosette Nebula - Halpha (Thibault Sandre)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: NGC 2237 · NGC 2238 · NGC 2239 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · The star 12 Mon

The Rosette Nebula - Halpha, Thibault Sandre

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The Rosette Nebula - Halpha

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The Rosette Nebula - Halpha

Imaging conditions

First SHO session using the FlatField and the Atik383L.

One hour Ha, one hour OIII, 45min SII, under heavy city light pollution and full moon.

Process description

I has some issues with cold pixel during staking under PI while calibrating the data. There are some remaining at full res view I can't get rid off "_

Here is shown the image resulting from the Ha data processing.

Monochrome data processing has been applied here : DynamicBackgroundExtration, ATrouWavelets for noise reduction at linear level, Histogram stretch, HDR multiscale transform, Local histogram Equalization, non linear noise reduction, curves boost, and a little stars reduction at the end.

Object description

Wikipedia 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 (although estimates of the distance vary considerably, down to 4,900 light-years.[3]) 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.

Original
Final
B

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Status	Basic success
Started	...
Astrometry.net job	6918970
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The Rosette Nebula - Halpha

The Rosette Nebula - Halpha

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The Rosette Nebula - Halpha

The Rosette Nebula - Halpha

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Description

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