Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  46 ksi Per  ·  California Nebula  ·  IC 2005  ·  IC 2027  ·  Menkib  ·  NGC 1499  ·  Sh2-220  ·  The star ξPer
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SH2-220, 



    
        

            Joey Troy
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SH2-220

Getting plate-solving status, please wait...
SH2-220, 



    
        

            Joey Troy
Powered byPixInsight

SH2-220

Equipment

Imaging Telescopes Or Lenses
William Optics Redcat 51
Imaging Cameras
ZWO ASI533MC Pro
Mounts
Sky-Watcher EQM-35 Pro
Filters
Optolong L-eXtreme 2"
Accessories
ZWO ASIair Pro · ZWO EAF
Software
Pleiades Astrophoto PixInsight
Guiding Telescopes Or Lenses
ZWO Mini Guider Scope
Guiding Cameras
ZWO ASI120MM Mini

Acquisition details

Dates:
Feb. 22, 2021
Frames:
Optolong L-eXtreme 2": 19x600" (3h 10') (gain: 101.00) -10°C
Integration:
3h 10'
Darks:
10
Flats:
10
Bias:
10
Avg. Moon age:
9.85 days
Avg. Moon phase:
75.10%
Bortle Dark-Sky Scale:
3.00

RA center: 04h01m09s.20

DEC center: +36°4635.7

Pixel scale: 1.571 arcsec/pixel

Orientation: -171.329 degrees (flipped)

Field radius: 1.858 degrees

More info:Open 

Resolution: 6016x6016

Locations: Backyard, Belen, NM, United States

Data source: Backyard

Description

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 Hα filter (isolates the Hα line at 656 nm) or 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.

By coincidence, the California Nebula transits in the zenith in central California as the latitude matches the declination of the object.

Comments

Sky plot

Sky plot

Histogram

SH2-220, 



    
        

            Joey Troy