The Great Orion Nebula (Derek Dailey)

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

I photographed the over multiple nights in November and December 2020. This was the most complicated image I’ve ever attempted as I had to use multiple exposure frames to create an HDR image that includes detail in the core and faint dust that surrounds this magnificent deep sky object. I learn a ton of new processing tricks creating this image and I probably have at least 20 hours invested in the processing of this image not including the image acquisition time involved.

I hope you enjoy my first image of the new year!

Nerdy details:

Acquisition: Bortle 8 Zone

ASTRO-TECH AT65EDQ 65MM F/6.5 ED QUADRUPLET

420mm f/6.7

ZWO ASI071MC Pro Camera

Gain 90, Offset 65, -20C with Optolong L-eNhance filter

Gain 90, Offset 65, -20C with Optolong L-Pro filter

ZWO ASI224MC Guide camera

Celestron AVX EQ Mount

Stellarmate INDI Controller

64 x 300 sec. Light frames. (5 hours 20 Minutes) L-eNhance

60 x 120 sec. Light frames. (2 hours 0 Minutes) L-eNhance

60 x 60 sec. Light frames. (1 hours 0 Minutes) L-eNhance

60 x 120 sec. Light frames. (2 hours 0 Minutes) L-Pro for stars

60 x 5 sec. Light frames. (0 hours 5 Minutes) L-Pro for M42 core

10 hours 25 minutes total integration time

Calibration frames: 25 each darks, flats and dark flats

Astro Pixel Processor for stacking and processing

Starnet++

Post finishing in Photoshop and Lightroom

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
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
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	4125949
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Contribution Index (beta):

The Great Orion Nebula

The Great Orion Nebula

Equipment

Acquisition details

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Image Index:

Contribution Index (beta):

The Great Orion Nebula

The Great Orion Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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