M42 (oernulfs) - AstroBin

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 · Lower Sword · M 42 · M 43 · Mairan's Nebula · NGC 1973 · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1982 · Orion Nebula · Sh2-279 · Sh2-281 · The star 42Ori · The star 45Ori · The star θ1Ori · The star θ2Ori · The star ιOri · the Running Man Nebula

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M42

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M42

Captured with an ATik 383l+ mono using an Atik EFW2.2 with 9x1.25'' Carousel.

Scope: APM 115mm

Mount: Eq8

Reducer: TS photoline 0,79x

Filters: Baader 1.25'' LRGB and H-alpha (7nm).

TS 9mm OAG.

Guidecam: Starlight xpress Lodestar

Exposures: all at - 15°C

L: 12x15s, 30x300s

R: 10x15s, 12x300s

G: 10x15s, 12x300s

B: 10x15s, 12x300s

H-alpha: 8x15s 18x300s, 6x600s

Capturing software: Artemis and Nebulosity

Postprocessing in Pixinsight

Comment: cropping needed due to shift of FOV (I will never touch the camera again…), and pick up prism shadow have affected some of the exposures causing extra noise in lower part of image. H alpha combined with L and with R.

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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	3476300
PixInsight job	M4DI85T9Z67DGY70TJK1YPVTUT2GA38Q
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h35m30s.14
RA (top/left)	05h31m52s.85
RA (top/right)	05h36m03s.92
RA (bottom/right)	05h39m07s.52
RA (bottom/left)	05h34m56s.31

Dec (center)	-05°15′52″.2
Dec (top/left)	-05°26′36″.3
Dec (top/right)	-04°21′15″.2
Dec (bottom/right)	-05°05′02″.5
Dec (bottom/left)	-06°10′26″.3

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M42

M42

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Image Index:

Contribution Index (beta):

M42

M42

Equipment

Acquisition details

Description

Comments

Revisions

C

Sky plot

Histogram

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