The region of the Orion nebula in H-alpha (Anders Johannesson)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 the01 Ori · 42 c Ori · 43 the02 Ori · 44 iot Ori · 45 Ori · De Mairan's nebula · Great Orion Nebula · Hatysa · IC 420 · LBN 963 · LBN 974 · LBN 977 · LDN 1640 · Lower Sword · M 42 · M 43 · Mairan's Nebula · NGC 1973 · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1981 · NGC 1982 · Orion Nebula · Sh2-279 · Sh2-281 · The star 42Ori · The star 45Ori · The star θ1Ori · And 5 more.

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The region of the Orion nebula in H-alpha

Revision title: colored version

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The region of the Orion nebula in H-alpha

Revision title: colored version

This HII region, including the Orion nebula located 1300 light years from Earth, has a very high dynamic range. In this image, obtained in narrowband H-alpha light, I combined 8 pairs of 1 and 5 minute exposures to capture it. The combined image is then processed to compress the dynamic range again, but with preserved details. This changes the appearance of the nebula quite a bit from how it would look like visually, but makes it possible to see much more details. I made both a black and white and a colored version and include both. Personally I like the colored version best, but I think they show about the same details.

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Final
B

B

Title: colored version

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ZWO ASI2600MM Pro
Imaged with N.I.N.A.
"Nordish by nature"
Narrowband imaging

Narrowband

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Status	Advanced success
Started	...
Astrometry.net job	5501538
PixInsight job	ESTTVTGK4TCUGNBB9WWVS810VMFRO6RQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h35m06s.46
RA (top/left)	05h40m28s.31
RA (top/right)	05h33m42s.20
RA (bottom/right)	05h29m44s.52
RA (bottom/left)	05h36m30s.68

Dec (center)	-05°22′38″.0
Dec (top/left)	-05°35′12″.8
Dec (top/right)	-04°04′09″.1
Dec (bottom/right)	-05°09′51″.8
Dec (bottom/left)	-06°41′03″.3

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The region of the Orion nebula in H-alpha

Revision title: colored version

The region of the Orion nebula in H-alpha

Revision title: colored version

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The region of the Orion nebula in H-alpha

Revision title: colored version

The region of the Orion nebula in H-alpha

Revision title: colored version

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Acquisition details

Description

Comments

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B

Sky plot

Histogram

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