Sh2-103: Cygnus Loop (Mosaic) (FlapAstro)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 52 Cyg · IC 1340 · LBN 191 · NGC 6960 · NGC 6974 · NGC 6979 · NGC 6992 · NGC 6995 · Sh2-103 · The star 52Cyg · Veil Nebula

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Sh2-103: Cygnus Loop (Mosaic)

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Sh2-103: Cygnus Loop (Mosaic)

Every year I try my hand at this beautiful summer target. Besides better gear I also hope to have improved my processing skills.

I wanted to retain fine detail and opted to use my main scope, however that meant that I needed to create a mosaic composed of 6 panels, taken during July and early August 2021.

I captured approx 40 subs for each of the panels, of which I retained approx 25 subs, based on the criteria of lowest Median, lowest gradient, small eccentricity and low FWHM.

Pixinsight was used for pre- and post-processing the images and to create the mosaic.

Each image was individually pre-processed (blink, calibration, debayer, registration, NSG and integration), followed by DBE and ABE, as well as PCC.

The resulting mosaic panels were registered using MosaicByCoordinates and merged into the final mosaic using PhotometricMosaic.

The usual linear and non-linear processing steps then followed to create the final mosaic.

Original
Final
B
C

B

Description: Reprocessed existing data from 2020 and 2021

Uploaded: ...

C

Description: Reprocessed the mosaic data by splitting the RGB into the Ha and OIII components to processes them separately before stretching, re-combination and adding back the stars.

Uploaded: ...

Duo-band, Tri-band, and Quad-band Imaging
QHY Users Group
Deep Sky Mosaics
Imagers of Switzerland

Narrowband

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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.
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Status	Advanced success
Started	...
Astrometry.net job	5442430
PixInsight job	E8TC88FVW598ABQG1V9IWGA88MXGUUQD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h51m21s.959
RA (top/left)	20h41m52s.847
RA (top/right)	20h48m51s.584
RA (bottom/right)	21h00m45s.866
RA (bottom/left)	20h53m58s.971

Dec (center)	+31°01′07″.78
Dec (top/left)	+31°28′49″.22
Dec (top/right)	+29°00′42″.24
Dec (bottom/right)	+30°31′01″.12
Dec (bottom/left)	+33°01′23″.22

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Sh2-103: Cygnus Loop (Mosaic)

Sh2-103: Cygnus Loop (Mosaic)

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Image Index:

Contribution Index (beta):

Sh2-103: Cygnus Loop (Mosaic)

Sh2-103: Cygnus Loop (Mosaic)

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

In these public groups

In these collections

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