NGC1499, California Nebula

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Discovered by Edward Barnard in 1885, the California nebula is a large and relatively close nebula in the Orion Arm of our Galaxy. The nebula glows because of the radiation from the intensely hot, class O star, Xi Persei which is the brightest star in this picture. It extends across 100 light years of space.The distance to the California nebula is not known very precisely, although it definitely lies within the Orion Arm and most estimates place the nebula about 1500 light years away. The most accurate distance to Xi Persei from the Hipparcos Catalogue puts the star roughly 1800 light years away, although it could easily be 500 light years nearer or further.

Imaging telescopes or lenses: Stellarvue SV80S
Imaging cameras: Atik 383L+ Mono
Guiding telescopes or lenses: Orion ST80
Guiding cameras: Orion SSAG StarShoot AutoGuider
Focal reducers: TeleVue 0.8x Photo Reducer/Flattener TRF-2008
Software: Images Plus, PS, PHD Images Plus 5.75, PS, PHD,  Noel Carboni’s Astro Tools for PhotoShop Noel Carboni Actions,  Artemis Capture Artemis
Filters: Baader OIII OIII,  Baader SII 8nm Ø36, Baader Ha 36mm H-Alpha
Accessories: ATIK EFW2, 7x36mm
Resolution: 1620×1183
Dates: Feb. 9, 2015,  Feb. 13, 2015,  Feb. 14, 2015
Frames:
Baader Ha 36mm H-Alpha: 11×900″ -20C bin 1×1
Baader SII 8nm Ø36: 11×900″ -20C bin 1×1
Baader OIII OIII: 11×900″ -20C bin 1×1
Integration: 8.2 hours
Darks: ~10
Flats: ~10
Avg. Moon age: 22.07 days
Avg. Moon phase: 50.40%
Bortle Dark-Sky Scale: 7.00
Temperature: 7.33
RA center: 60.503 degrees
DEC center: 36.430 degrees
Pixel scale: 5.860 arcsec/pixel
Orientation: -25.147 degrees
Field radius: 1.633 degrees
Locations: The Shack Observatory, Panama City, Florida, United States

 

Author: jmfloater

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