NGC 1499 - California Nebula in SHO (Uwe Deutermann)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: California Nebula · HD24747 · HD25152 · HD279141 · HD279142 · HD279143 · HD279146 · HD279147 · HD279148 · HD279149 · HD279153 · HD279154 · HD279215 · HD279216 · HD279217 · HD279218 · HD279219 · HD279221 · HD279222 · HD279223 · HD279224 · HD279225 · HD279226 · HD279228 · HD279229 · HD279232 · HD279233 · HD279234 · HD279238 · HD279279 · And 22 more.

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NGC 1499 - California Nebula in SHO

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NGC 1499 - California Nebula in SHO

My first try to create an image with a lot of and longer exposure time. I chose the California Nebula since it is one of the objects in the sky that I can image for approximately 4.5 hours in a row without having trees blocking the sight. I can definitely say that the result is better, not as good as I anticipated, but seeing is a problem in high humidity areas. Still, this encourages to go this path further, hopefully clear skies will help me out with this endeavor ;-).

Wikipedia: 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.

Original
B
Final
C

B

Description: More luminance

Uploaded: ...

C

Description: Added 4 more hours of exposure time. The seeing conditions were not as great as they were when I took the first 8 hours.

Uploaded: ...

Narrowband imaging
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Status	Advanced success
Started	...
Astrometry.net job	9398952
PixInsight job	PBEBBG8F0Y851GHYSO1JPCIPQWEK9I6H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h59m38s.81
RA (top/left)	04h04m37s.45
RA (top/right)	03h58m05s.25
RA (bottom/right)	03h54m41s.90
RA (bottom/left)	04h01m10s.60

Dec (center)	+36°33′20″.1
Dec (top/left)	+36°43′28″.10
Dec (top/right)	+37°31′01″.1
Dec (bottom/right)	+36°22′36″.6
Dec (bottom/left)	+35°35′32″.0

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NGC 1499 - California Nebula in SHO

NGC 1499 - California Nebula in SHO

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NGC 1499 - California Nebula in SHO

NGC 1499 - California Nebula in SHO

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