M42 Orion Nebula in HaRGB (Sergey Kholmanskikh)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 Ori A) · 41 Ori C · 41 Ori D · 42 Ori) · 43 Ori) · 44 Ori) · 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 45 Ori · The star Hatysa (ι Ori · The star Mizan Batil I (c Ori · The star Mizan Batil II (θ2 Ori · The star Trapezium (θ1 Ori A · The star θ1 Ori C · The star θ1 Ori D · Upper Sword · the Running Man Nebula

M42 Orion Nebula in HaRGB, Sergey Kholmanskikh

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M42 Orion Nebula in HaRGB

Powered byPixInsight

M42 Orion Nebula in HaRGB

This HaRGB image of M42 is taken on December 8-9 from my backyard located 25 km from Moscow under Bortle 8 skies

RGB: 45 frames x 15 sec, 112 frames x 60 sec

Ha: 92 frames x 90 sec

Equipment:

Canon 500Da, Canon EF 100-300 f5.6L lens @ 230 mm focal length, Optolong l-Pro filter for RGB and l-eNhance for Ha, iOptron Skytracker mount.

Software:

APT for image acquizition; Siril for calibration, registration, stacking, photometric white balancing, histogram stretching, ASINH, CLAHE, SCNR; Topaz DenoiseAI; Photomatix for HDR tonemapping of 15/60 sec images; Astra Image Plus for multiscale sharpening and deconvolution of Ha luminance image; Luminar for Ha luminance layer integration, contract and color polishing.

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	8976719
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M42 Orion Nebula in HaRGB

M42 Orion Nebula in HaRGB

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M42 Orion Nebula in HaRGB

M42 Orion Nebula in HaRGB

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