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Getting plate-solving status, please wait...
California Nebula - DSLR HaGB, 



    
        

            Thomas Richter

California Nebula - DSLR HaGB

Technical card

Imaging telescope or lens:GSO 8" f/5 Newton

Imaging camera:Canon EOS 450Da

Mount:SkyWatcher NEQ6 Pro Goto

Guiding telescope or lens:Viewfinder 8x50

Guiding camera:Astrolumina Alccd5L-IIc

Focal reducer:TS Coma corrector 2"

Software:PHD2 GuidingDSS, Fitswork, Gimp

Filter:Baader Ha 2" 7nm


Dates:Oct. 31, 2015

Frames:
77x45" ISO800
Baader Ha 2" 7nm: 29x300" ISO800

Integration: 3.4 hours

Flats: ~30

Bias: ~30

Avg. Moon age: 19.18 days

Avg. Moon phase: 79.48%

Temperature: 4.00


Basic astrometry details

Astrometry.net job: 834580


Resolution: 4229x2793

Locations: Nürnberg, Nürnberg, Bayern, Germany

Description

This is a combination of Ha, G and B channel.
The original R channel has been completely replaced by Ha data.

Thanks for watching !

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.

Comments

Author

superelch
Thomas Richter
License: None (All rights reserved)
2991
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Histogram

California Nebula - DSLR HaGB, 



    
        

            Thomas Richter