The Great nebula (Duane Melvin)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 the01 Ori · 42 c Ori · 43 the02 Ori · 44 iot Ori · 45 Ori · De Mairan's nebula · Great Orion Nebula · Hatysa · LBN 974 · LDN 1640 · 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 · Sh2-279 · Sh2-281 · The star 42Ori · The star 45Ori · The star θ1Ori · The star θ2Ori · The star ιOri · Upper Sword · And 1 more.

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The Great nebula

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The Great nebula

200 subs, 30 Seconds each, gain = 101 1.66 hours Light Integration Time
50 bias, 50 DarkFlats, 50 Flats, 50 Darks

Explore Scientific - Triplet APO Refractor, 102mm x 714mm with Orion 0.8x Reducer/Field Flattener

Optolong L-pro filter in Starizona magnetic single tray holder

Orion G26 16Bits 26MP color camera, 3.76-micron pixels, APS-C format cooled to -15 Degrees C

EQ6R PRO Mount
PHD guiding on Orion Starshoot TM camera ST4 cable with Orion Short Refractor Doublet 80mm x 300mm
+ - 0.3-pixel guide performance at 5.2 micron pixels
SVBony wrap heaters

Hand-Made Bahtinov Mask

APT Image Capture
Deep Sky Stacker
PS final edits

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	Advanced success
Started	...
Astrometry.net job	5600396
PixInsight job	KRM2DWQG8UM1UFM9N2QUZY890JNZN067
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h35m25s.97
RA (top/left)	05h34m55s.35
RA (top/right)	05h31m21s.41
RA (bottom/right)	05h35m56s.58
RA (bottom/left)	05h39m29s.79

Dec (center)	-05°24′17″.7
Dec (top/left)	-04°15′18″.8
Dec (top/right)	-05°57′42″.2
Dec (bottom/right)	-06°33′18″.8
Dec (bottom/left)	-04°50′49″.7

Image Index:

Contribution Index (beta):

The Great nebula

The Great nebula

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Image Index:

Contribution Index (beta):

The Great nebula

The Great nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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