M42 in HaOiiiRGB (Craig Young)

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 · HD36560 · HD36606 · HD36655 · HD36671 · HD36782 · HD36842 · HD36843 · HD36865 · HD36883 · HD36917 · HD36918 · HD36936 · HD36938 · HD36957 · HD36958 · HD36959 · HD36960 · HD36981 · And 52 more.

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M42 in HaOiiiRGB

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M42 in HaOiiiRGB

Another popular winter target! I collected some data on M42 while waiting for other targets to get above the tree line. This image is around 1.5 hours of total integration time across two nights, consisting of:

120, 30 second lights in RGB using Optolong L-Pro filter collected 12/17/23.
11, 10 second lights in RGB using Optolong L-Pro filter to get the core and Trapezium collected 12/17/23.
61, 30 second lights in HaOiii using Optolong L-Enhance filter collected 12/18/23.

Processed in PixInsight. While the trapezium has some processing artifacts, you really need to zoom in to see them.

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Final
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Description: Reprocessed to bring out more detail in the core.

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Distribution of astrophotographers

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	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	Advanced success
Started	...
Astrometry.net job	9056131
PixInsight job	GDI065QYDESJDNUXKXYIO33RI8ZKHTUE
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h35m17s.84
RA (top/left)	05h33m42s.27
RA (top/right)	05h30m59s.60
RA (bottom/right)	05h36m54s.40
RA (bottom/left)	05h39m35s.70

Dec (center)	-05°23′20″.10
Dec (top/left)	-04°02′08″.2
Dec (top/right)	-06°18′13″.4
Dec (bottom/right)	-06°44′40″.8
Dec (bottom/left)	-04°28′22″.7

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M42 in HaOiiiRGB

M42 in HaOiiiRGB

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M42 in HaOiiiRGB

M42 in HaOiiiRGB

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