M42 Orion and SH2-279 (Dawn Lowry)

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 Nebula in Orion · Hatysa · M 42 · M 43 · NGC 1973 · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1981 · NGC 1982 · Sh2-279 · Sh2-281 · The star 42Ori · The star 45Ori · The star θ1Ori · The star θ2Ori · The star ιOri · VdB44

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M42 Orion and SH2-279

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M42 Orion and SH2-279

~~~~Tekkie stuffs:

Telescope: Explorer scientific Ed 80 FCD-100

Camera: ASI1600pro

Filters: Astrodon E series

Mount: Atlas EQ-G

Guiding camera: 290 mini with Eco 50 guide scope

L RGB: 40 RGB at 10s; Lum 8 at 300s, then LRGB 45;45;32;39 at 60s

Total integration time: 3.84 hours

Seeing/ environment: 2

Bortle Class: Class 5/6 Backyard~ Central Indiana

Dates of acquisition: 1/1, 2, 21/2020

processing Pixinsght:

processing: considerations. MULTIPLE nights with good alignment (2 degree error allowed in SGP) flat and dark calibration on 12/22/19 off but salvaged

8 master files

synth lum from 10s RGB to make 9 total masters

Aligned all to each other.

HDR R G B with 10s and 60s masters; then HDR Lum with 10s 60s and 300s

Crop

DBE

RGB combine the HDR RGB masters

RGB workflow~PCC; MLT for Noise reduction

Lum workflow~decon with autopsf 80 iterations 5 layers; MLT for noise reduction

LRGB combine: trialled MS and Arc sin and chose HT with Bg at 10%;

cloned the RGB and performed HDRMT at 6 with mask to core and then again at 4 this was 30% combined with same mask to master RGB.

LHE immediately after

TGDVN and a restretch to bring up the black point

Curves with game script masking for lightness and sat boost

XPTR with game script mask for lum boost; MLT for sharpening.

Morph to reduce the stars just a bit and ICC to end. very lightly finished in Light room for selective brightening and also to fix the geo satellite trail

Women Astrophotographers
Cloudy Nights
ZWO ASI1600MM/QHY163M

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
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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	3215916
PixInsight job	BIWNZUW4WSY03XRMJV4WY1G5H5DOEY2L
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h35m09s.39
RA (top/left)	05h31m57s.65
RA (top/right)	05h31m57s.41
RA (bottom/right)	05h38m21s.69
RA (bottom/left)	05h38m20s.66

Dec (center)	-05°16′27″.3
Dec (top/left)	-04°10′45″.4
Dec (top/right)	-06°22′11″.8
Dec (bottom/right)	-06°22′05″.7
Dec (bottom/left)	-04°10′40″.1

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M42 Orion and SH2-279

M42 Orion and SH2-279

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M42 Orion and SH2-279

M42 Orion and SH2-279

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