Sh2 234 Spider H-Alpha (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 24 phi Aur · IC 417 · NGC 1907 · NGC 1931 · Sh2-234 · Sh2-237 · The star φAur

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Sh2 234 Spider H-Alpha

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Sh2 234 Spider H-Alpha

I may put the RGB back up but you just cannot see the detail in the color version. Reminds me of why Ansel Adam used the zone system in Black and White. For those of you not familiar with Ansel Adam, he was a famous American landscape photographer who worked a lot in Yosemite National park. His zone system divided the subject into 11 zones from black to white in even gradations of grey. A "good" rendition had equal amount of all 11 zones. Ansel of course used 5" glass plates and was really before color yet his theory still is very important in landscape photography. In Yosemite Galen Rowell was the first great color photographer who was famous for popularizing push processing of Fuji Velvia film.

https://en.wikipedia.org/wiki/Zone_System

Ansel did all this before Photoshop.... in the dark room.

Information on Galen:

https://en.wikipedia.org/wiki/Galen_Rowell

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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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Status	Advanced success
Started	...
Astrometry.net job	1478792
PixInsight job	BEIVL1L9SXM6MLUXIO3AUJ0ZMOEYAHLY
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h28m13s.13
RA (top/left)	05h24m36s.80
RA (top/right)	05h24m44s.39
RA (bottom/right)	05h31m45s.39
RA (bottom/left)	05h31m47s.40

Dec (center)	+34°26′22″.8
Dec (top/left)	+35°24′56″.5
Dec (top/right)	+33°26′51″.4
Dec (bottom/right)	+33°27′09″.6
Dec (bottom/left)	+35°25′37″.9

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Sh2 234 Spider H-Alpha

Sh2 234 Spider H-Alpha

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Sh2 234 Spider H-Alpha

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