The Great Orion Nebula (Dark Rift Astro)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Great Orion Nebula · IC 420 · 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 · The star 42Ori · The star 45Ori · The star θ1Ori · The star θ2Ori · The star ιOri · Upper Sword · the Running Man Nebula

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The Great Orion Nebula

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The Great Orion Nebula

The Orion Nebula (M42, NGC 1976) is a diffuse nebula located within the Orion constellation. It’s so bright that it can be seen with the naked eye, appearing as a fuzzy “star” in the center of Orion’s sword. The Orion Nebula is the closest star formation nebula, about 1344 light years away from planet Earth. The nebula is estimated to be 24 light years across.

I imaged the Great Orion Nebula last night. It was one of those nights where things didn't go well. Guiding wasn't too good but the telescope's short focal length and slightly under-sampled pixel size hides it. When processing the images this morning, I found that something was wrong with the field flatness. Images taken after the meridian flip had misaligned stars in the upper left and lower right corners. As a result, I had to crop out a lot of the image.

I was very surprised at how well I was able to capture the faint hydrogen alpha regions surround the Orion Nebula. I could really use a lot more exposure time to improve the signal in that area. But with the poor field flatness, I would either have to continue imaging with poor settings and a cropped final result, or fix the flatness and start over, throwing out the entire night of data.

The OSC Club (One Shot Camera)
Affinity Photo for Astrophotography users
Duo-band, Tri-band, and Quad-band Imaging
Imaged with N.I.N.A.
ZWO ASI 2600MC PRO

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	Distinct awarded users	Total awarded images
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Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
Started	...
Astrometry.net job	5348819
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The Great Orion Nebula

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