Cygnus Loop with East and West Veil (Linwood Ferguson)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 52 Cyg · HD197702 · HD197839 · HD198198 · HD198330 · HD198482 · HD198626 · HD198627 · HD199055 · HD199252 · HD199763 · HD199837 · HD199912 · HD334874 · HD335004 · HD335006 · HD335007 · HD335008 · HD335010 · HD335013 · HD335016 · HD335017 · HD335018 · HD335022 · HD335024 · HD335025 · HD335028 · HD335030 · HD335031 · HD335032 · And 95 more.

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Cygnus Loop with East and West Veil

Link: https://www.captivephotons.com/Photography/Astrophotography/i-xDt5JZj/A

Powered byPixInsight

Cygnus Loop with East and West Veil

Link: https://www.captivephotons.com/Photography/Astrophotography/i-xDt5JZj/A

East (left) and West Veil nebulae in the Cygnus loop. This is a combination of RGB and narrowband exposures . The RGB and Narrowband were separately used to form synthetic luminance, a combined LRGB and SHO image produced, then stars removed and combined with the mean, some saturation and contrast added then the stars merged in by adding the square of the normalized star image (this preferentially reduces the brightness of less bright stars, leaving the color unchanged). This represents about 25.2 hours of data with a NP101is at F5.4, on a AP1100AE mount and ASI6200MM Pro.

This is a single frame not a mosaic, and is virtually the entire full frame (just a few pixels removed to allow for night-to-night framing differences). I am not terribly happy with the star shapes in the corner. Televue recommended that I change the backfocus from the original recommendation of 68mm to 71mm, which was done for the last night only with some improvement, but in the long run I think I need to avoid using the far corners.

I welcome criticism and suggestions.

Linwood

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Status	Advanced success
Started	...
Astrometry.net job	7954395
PixInsight job	DK7ZCIPQX71XPJSAU0PPUSGCMC375BL3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h51m45s.20
RA (top/left)	20h58m39s.69
RA (top/right)	20h41m55s.68
RA (bottom/right)	20h45m04s.20
RA (bottom/left)	21h01m25s.70

Dec (center)	+31°03′31″.3
Dec (top/left)	+32°42′07″.2
Dec (top/right)	+31°44′31″.9
Dec (bottom/right)	+29°23′39″.9
Dec (bottom/left)	+30°19′43″.9

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Cygnus Loop with East and West Veil

Cygnus Loop with East and West Veil

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Cygnus Loop with East and West Veil

Cygnus Loop with East and West Veil

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