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| Date: 25/10/2014 |
DeepSkyStacker |
Name: California Nebula - NGC 1499 - Distance 1,000 Light Years 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 Persel (also known as Menkib,
seen at center below it in the inset at right).
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| Location: Watson's Way | Stacking Mode: Mosaic | |
| Camera: Canon 40D - LP Filter Removed | Alignment Method: Automatic | |
| Optics: Sky Watcher ED80 | Stacking Mode: Mosaic | |
| Exposure: 800ASA @ 5 Minutes x 6 | RGB BKG Cal: Yes | |
| Total Exposure: 30min Total | Per Channel Cal: No | |
| Guiding: DSI on Mead LX200R. | Method: Median Kappa-Sigma K=2/I=5 | |
| Filter: | Darks: Yes | |
| Focus: Bahtinov Mask | Flat: No | |
| Full Details | ||
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Position in Sky |
PhotoShop CS4 |
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| RA (J2000): | Levels, Colour Balance, Curves, Saturation Scaling, jpeg Conversion. | |
| DEC (J2000): | ||
| Constellation: Perseus | ||
| Distance: 1,000 Light Years |
