California Nebula SHO - NGC 1499 - a cosmic Rainbow (Thomas Richter)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 46 ksi Per · California nebula · IC 2005 · Menkib · NGC 1499 · Sh2-220 · The star ξPer

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California Nebula SHO - NGC 1499 - a cosmic Rainbow

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California Nebula SHO - NGC 1499 - a cosmic Rainbow

Object description (wikipedia.org):

The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei (also known as Menkib, seen at center below it in the inset at right).

The California Nebula was discovered by E. E. Barnard in 1884.

Original
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C

Description: adjusted shadows and highlights

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D

Description: New processing and lower saturation

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Narrowband imaging
Nuremberg Public Observatory
Astrofreunde-Franken

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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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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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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	1877503
PixInsight job	JNSI5WZ1RR80KTKWLBPSZ2MIYVCXV5P1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h00m43s.95
RA (top/left)	03h54m17s.70
RA (top/right)	03h58m55s.26
RA (bottom/right)	04h07m03s.54
RA (bottom/left)	04h02m36s.82

Dec (center)	+36°21′48″.4
Dec (top/left)	+37°08′21″.1
Dec (top/right)	+34°54′08″.4
Dec (bottom/right)	+35°33′57″.6
Dec (bottom/left)	+37°49′23″.9

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California Nebula SHO - NGC 1499 - a cosmic Rainbow

California Nebula SHO - NGC 1499 - a cosmic Rainbow

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California Nebula SHO - NGC 1499 - a cosmic Rainbow

California Nebula SHO - NGC 1499 - a cosmic Rainbow

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