Orion Mosaic (Dan Pelzel)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Great Nebula in Orion · Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · M 42 · M 43 · NGC 1973 · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1981 · NGC 1982 · NGC 2023 · NGC 2024 · The star 42Ori · The star 45Ori · The star Alnitak (ζOri) · The star θ1Ori · The star θ2Ori · The star ιOri · The star σOri

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Orion Mosaic

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Orion Mosaic

This is old data. I just played around in PS a bit to get the colors better. The original data had terrible issues with flats and weird halos and light pollution gradients.

I would like to reshoot the RGB for this one day. The Ha data is a little noisy but overall decent enough.

Imaging telescope or lens:Stellarvue SV80ST-25SV

Imaging camera:ZWO ASI1600MM-Cool

Mount:Celestron CGEM DX

Guiding telescope or lens

rion 50mm Guide Scope Orion 50 mm Guide Scope

Guiding camera

rion Starshoot Autoguider

Focal reducer:Stellarvue 0.8 FF&R Stellarvue 0.8

Software:Main Sequence Software Sequence Generator Pro Sequence Generator Pro, PHD2 Guiding PHD 2.5, PixInsight version 1.8, Adobe Lightroom CC

Filter:Baader OIII 1.25" 8.5nm

Resolution: 8000x3848

Dates

ct. 19, 2016, Nov. 22, 2016, Nov. 26, 2016, Dec. 1, 2016

Frames:

Orion Extra Narrowband Filter Ha 1.25": 255x90" (gain: 200.00) -20C

ZWO BLUE: 104x90" (gain: 200.00) -20C bin 1x1

ZWO GREEN: 104x90" (gain: 200.00) -20C bin 1x1

ZWO RED: 104x90" (gain: 200.00) -20C bin 1x1

Integration: 14.2 hours

Darks: ~43

Flats: ~27

Bias: ~250

Avg. Moon age: 17.61 days

Avg. Moon phase: 33.63%

Bortle Dark-Sky Scale: 9.00

Astrometry.net job: 2953136

RA center: 84.570 degrees

DEC center: -3.763 degrees

Pixel scale: 2.242 arcsec/pixel

Orientation: 52.019 degrees

Field radius: 2.764 degrees

Original
Final
B

Cloudy Nights

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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
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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
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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.

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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.
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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	2953131
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Orion Mosaic

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