NGC 7023 • Iris Nebula (Douglas J Struble)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7023

NGC 7023 • Iris Nebula, Douglas J Struble

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NGC 7023 • Iris Nebula

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NGC 7023 • Iris Nebula

This is the first time combing data from two different years and two different scopes. Being in a red zone, one of the most highly light polluted areas, it is very hard to pull out dark nebula and IFN. It was my goal to see if I can pull out any combing data from both years. I think I made some advancements. Still not the greatest given my overall integration time, but it worked. Colors look a little muted here, but looks perfect when printed so I am not going to overcompensate the saturation.

NGC 7023 is a reflection nebula located in the west central section of the far northern constellation of Cepheus. The nebula contains at its centre an extremely young star named V380 Cep (mag. +7.1) which is believed to have burst into life just 5,500 years ago. Since still incredibly young there is plenty of local dust surrounding the star and when starlight hits the dust it's reflected to become the visible nebula.

NGC 7023 is located 6 degrees northwest of the brightest star in Cepheus, Alderamin (α Cep - mag. +2.5) with third magnitude Alfirk (β Cep) positioned about 3.5 degrees to the northeast. Only a degree east-northeast of NGC 7023 is Mira type variable star T Cep, which fluctuates between magnitudes +5.2 and +11.3 over a period of 388.14 days. A faint eleventh magnitude barred-spiral galaxy, NGC 6951, is positioned two degrees southwest of NGC 7023.

The nebula is also known as the Iris Nebula and is number 4 in the Caldwell catalogue. It was discovered by Sir William Herschel on October 18, 1794.

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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 success
Started	...
Astrometry.net job	3258026
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 7023 • Iris Nebula

NGC 7023 • Iris Nebula

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NGC 7023 • Iris Nebula

NGC 7023 • Iris Nebula

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