The Cave Nebula (Theodore Arampatzoglou)

The Cave Nebula

The Cave Nebula ( Sharpless 2-155, Caldwell 9) is part of an extensive region of ionized hydrogen gas region. Sharpless 2-155 is a dim and very diffuse nebula within a larger nebula complex containing emission, reflection, and dark nebulosity. It is located in the constellation Cepheus and associated with the Cepheus B giant molecular cloud, laying at a distance of about 2800 light-years. Part of the cloud is illuminated by a pack of hot, young stars known as the Cepheus OB3 association.

Instruments and exposure data:

W.O FLT110 with dedicated TMB field flattener

FeatherTouch 3'' focuser

Starizona MicroTouch autofocuser

W.O ZS80 ED

SBIG ST10XME CFW9

Meade DSI

Filters: Ha 5nm Astrodon_S[II] 8nm Baader_O[III] 3nm Astrodon

Sky-Watcher EQ6 Pro

Ha:50*8min bin1x1

S[II]:63*8min bin1x1

O[III]:57*8min bin1x1

Total exposure time:22h 40min

Vironas,Athens Greece

Revision B: added a superluminance layer(a sum of the median combine masters of SII , OIII and Ha

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B

B

Description: Revision B: added a superluminance layer(a sum of the median combine masters of SII , OIII and Ha)

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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	Basic failed
Started	...
Astrometry.net job	807535
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The Cave Nebula

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