Cygnus On Fire (Todd Stephens)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 28 b02 Cyg · 29 b03 Cyg · 34 P Cyg · 36 Cyg · 37 gam Cyg · 40 Cyg · 42 Cyg · 44 Cyg · 45 ome01 Cyg · 46 ome02 Cyg · 50 alf Cyg · 51 Cyg · 55 Cyg · 56 Cyg · 57 Cyg · 58 nu. Cyg · 59 f01 Cyg · 60 Cyg · 62 ksi Cyg · B342 · B343 · B344 · B345 · B346 · B347 · B348 · B349 · B350 · B351 · B352 · And 74 more.

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Cygnus On Fire

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Cygnus On Fire

This is a 4-panel mosaic of the H-alpha nebulosity in the constellation Cygnus, but to me it looks a bit like a wind-swept wildfire with embers blowing through the wind. It could have been done in 3 panels, but I'm just not that good at framing.

I used my H-a modded Canon 600D, Rokinon 135mm f/2 with Optolong L-eNhance filter front-mounted with step-down rings, and Skyguider Pro guided with PHD2. I got a total of 170 300-second light frames at ISO 800 across the four nights, with a set of 12 darks for each night, and the same set of 30 flats and dark flats used across all four nights.

Calibrated, stacked, and mosaick-ed in Astro Pixel Processor, star reduction with Starnet++, and recombination and final tweaks in GIMP.

C&C welcome! Thanks for looking.

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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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Status	Advanced success
Started	...
Astrometry.net job	3670669
PixInsight job	31UIGOWWFTKVBI3KNXMT8PJNN98VCNS8
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h32m29s.10
RA (top/left)	20h44m01s.4
RA (top/right)	19h47m54s.3
RA (bottom/right)	20h23m46s.3
RA (bottom/left)	21h20m08s.8

Dec (center)	+42°51′32″
Dec (top/left)	+51°23′02″
Dec (top/right)	+40°08′36″
Dec (bottom/right)	+34°14′47″
Dec (bottom/left)	+44°24′22″

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Cygnus On Fire

Cygnus On Fire

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Cygnus On Fire

Cygnus On Fire

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