Celestial hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  California nebula  ·  NGC 1499
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California Nebula - DSLR HaGB, Thomas Richter
California Nebula - DSLR HaGB
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California Nebula - DSLR HaGB

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Description

This is a combination of Ha, G and B channel.

The original R channel has been completely replaced by Ha data.

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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.

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  • Final
    California Nebula - DSLR HaGB, Thomas Richter
    Original
  • California Nebula - DSLR HaGB, Thomas Richter
    B

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California Nebula - DSLR HaGB, Thomas Richter