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Hemisphere:  Northern  ·  Contains:  46 ksi Per  ·  California Nebula  ·  California nebula  ·  IC2005  ·  IC2027  ·  Menkib  ·  NGC 1499  ·  NGC1499  ·  Sh2-220  ·  The star ξPer
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The California Nebula, 


            Gabe Shaughnessy
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The California Nebula

Imaging telescopes or lenses: Astro-Physics 92mm F6.65 Stowaway

Imaging cameras: ZWO ASI6200MM Pro

Mounts: Astro-Physics Mach1AP GTO CP4

Guiding telescopes or lenses: Astro-Physics 92mm F6.65 Stowaway

Guiding cameras: ZWO Optical ASI174MM

Focal reducers: Astro-Physics 0.8x CCD Telecompressor (92TCC)

Software: Voyager  ·  Astro-Physics Command Center (APCC) Pro Software  ·  PHD2  ·  PixInsight

Filters: Chroma SII 3nm  ·  Chroma OIII 3nm  ·  Chroma Ha 3nm

Accessory: Pegasus Astro Ultimate Powerbox v2  ·  Starlight Instruments Focuser Boss 2 HSM

Dates:Oct. 4, 2020Oct. 8, 2020Nov. 7, 2020

Chroma Ha 3nm: 20x900" bin 1x1
Chroma OIII 3nm: 41x900" bin 1x1
Chroma SII 3nm: 24x900" bin 1x1

Integration: 21.2 hours

Avg. Moon age: 19.64 days

Avg. Moon phase: 73.36% job: 4014755

RA center: 4h 2' 43"

DEC center: +36° 4' 30"

Pixel scale: 1.567 arcsec/pixel

Orientation: -91.116 degrees

Field radius: 2.473 degrees

Resolution: 6292x9480

Data source: Backyard


The California Nebula, NGC 1499, is an emission nebula in the constellation Perseus and lies some 1000 light years away. It is nearly 2.5 degrees long and can be seen visually with a Hydrogen-beta filter in the winter months. Its emission is due to the excitation of this H-beta line by the nearby blue O7 star, xi Persei to the right of the nebula. This image combines images through H-alpha, OIII and SII filters to show the spatial distribution of these gases.



Gabe Shaughnessy


    The California Nebula, 


            Gabe Shaughnessy
  • Final
    The California Nebula, 


            Gabe Shaughnessy

Sky plot

Sky plot


The California Nebula, 


            Gabe Shaughnessy