Great Orion Nebula - HDR Mode (Simone Curzi)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 Ori A) · 41 Ori C · 41 Ori D · 41 the01 Ori · 42 Ori) · 42 c Ori · 43 Ori) · 43 the02 Ori · 44 Ori) · 44 iot Ori · 45 Ori · Great Orion Nebula · HD294217 · HD294218 · HD294220 · HD294221 · HD294222 · HD294259 · HD294261 · HD294262 · HD294263 · HD294293 · HD36528 · HD36539 · HD36540 · HD36550 · HD36559 · HD36560 · HD36593 · HD36606 · And 96 more.

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Great Orion Nebula - HDR Mode

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Great Orion Nebula - HDR Mode

M42 is a classic of HDR processing. The acronym HDR stands for High Dynamic Range and, with this acronym, we mean a technique that allows us to increase the dynamic range of our sensor, or rather of our image. The dynamic range of a digital sensor is a feature of primary importance for all those photographic genres that include in the photo areas with high brightness variability. Astrophotography is one of the photographic sectors in which we most often, if not always, find ourselves in this condition. In fact, we pass, in the same image, from the intense light of a star to the darkness of the deep sky.
It may happen that in long poses you go to saturate the brightest areas of the image, going to "burn" them, making these areas completely white, losing color and information.
This will happen more frequently the lower the dynamic range of our sensor. But there will still be situations in which it will be impossible to recover certain areas even with very high quality sensors.
It is to overcome this limit that the HDR technique is used. I said that m42 is a classic of this technique, although in my opinion some exaggerate presenting the very dark nucleus almost "venous". I like to keep it bright is still a stellar forge!

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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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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	8525122
PixInsight job	7WFIH4EZF2XYY8BTR5RDB6EQQVTZ3HPX
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h35m13s.11
RA (top/left)	05h31m23s.92
RA (top/right)	05h32m13s.35
RA (bottom/right)	05h39m03s.68
RA (bottom/left)	05h38m12s.70

Dec (center)	-05°14′45″.7
Dec (top/left)	-04°10′22″.5
Dec (top/right)	-06°28′22″.5
Dec (bottom/right)	-06°19′11″.6
Dec (bottom/left)	-04°01′13″.1

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Great Orion Nebula - HDR Mode

Great Orion Nebula - HDR Mode

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Great Orion Nebula - HDR Mode

Great Orion Nebula - HDR Mode

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