NGC7023 (vdB139) Iris Nebula; Cepheus (Thomas V. Davis)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7023 · VdB139

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NGC7023 (vdB139) Iris Nebula; Cepheus

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NGC7023 (vdB139) Iris Nebula; Cepheus

NGC7023 (vdB139) Iris Nebula; Cepheus

Astro Systeme Austria N12 f/3.5 astrograph

KAI-11000M; SBIG STL

Total Exposure Time: 6+ Hours; LRGB 186:60:60:60 minutes; unbinned

June 2007; Inkom, ID

Comments: Like delicate cosmic petals, these clouds of interstellar dust and gas have blossomed 1,300 light-years away in the fertile star fields of the constellation Cepheus. Sometimes called the Iris Nebula and dutifully cataloged as NGC 7023, this is not the only nebula in the sky to evoke the imagery of flowers. Still, the beautiful digital image shows off the Iris Nebula's range of colors and symmetries in impressive detail. Within the Iris, dusty nebular material surrounds a massive, hot, young star in its formative years. Central filaments of cosmic dust glow with a reddish photoluminesence as some dust grains effectively convert the star's invisible ultraviolet radiation to visible red light. Yet the dominant color of the nebula is blue, characteristic of dust grains reflecting starlight. Dark, obscuring clouds of dust and cold molecular gas are also present and can lead the eye to see other convoluted and fantastic shapes. Infrared observations indicate that this nebula may contain complex carbon molecules known as PAHs (comment source: NASA APOD).

This was the object that started my hunt for dusty deep sky objects. This was one the first images of NGC7023 taken in wide field color imaging published on the internet.

This image was NASA APOD June 26, 2007.

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	2096122
PixInsight job	E3EXVQ7C2IUH9SOUD23IC7MAKGTG0DA4
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h02m28s.97
RA (top/left)	21h08m38s.74
RA (top/right)	21h09m13s.13
RA (bottom/right)	20h55m48s.98
RA (bottom/left)	20h56m15s.10

Dec (center)	+67°42′44″.6
Dec (top/left)	+66°46′52″.9
Dec (top/right)	+68°37′23″.8
Dec (bottom/right)	+68°37′38″.7
Dec (bottom/left)	+66°47′06″.7

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NGC7023 (vdB139) Iris Nebula; Cepheus

NGC7023 (vdB139) Iris Nebula; Cepheus

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NGC7023 (vdB139) Iris Nebula; Cepheus

NGC7023 (vdB139) Iris Nebula; Cepheus

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