Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  46 ksi Per  ·  California nebula  ·  IC2005  ·  Menkib  ·  NGC 1499  ·  NGC1499  ·  Sh2-220  ·  The star ξPer
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The Golden State (NGC 1499), 


            Gary Lopez
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The Golden State (NGC 1499)

Getting plate-solving status, please wait...
The Golden State (NGC 1499), 


            Gary Lopez
Powered byPixInsight

The Golden State (NGC 1499)

Imaging telescopes or lenses: William Optics GT71 71mm f/5.9 Apo Refractor

Imaging cameras: ZWO ASI1600MM Cooled PRO

Mounts: Orion Atlas EQ-G

Guiding telescopes or lenses: Orion 50mm Guide Scope with helical focusing

Guiding cameras: Lacerta M-Gen II Autoguider

Focal reducers: William Optics 0.8X Field Flattener

Software: Adobe Lightroom CC  ·  Photoshop CC  ·  Main Sequence Software Sequence Generator Pro, v3.0  ·  Pleaides PixInsight Core 1.8

Filters: Astrodon OIII 3nm-31mm  ·  Astrodon SII 3nm-31mm  ·  Astrodon Ha 3nm-31mm

Dates:Oct. 31, 2019Nov. 1, 2019Nov. 3, 2019

Astrodon Ha 3nm-31mm: 265x180" (gain: 139.00) -15C bin 1x1
Astrodon OIII 3nm-31mm: 120x180" (gain: 139.00) -15C bin 1x1
Astrodon SII 3nm-31mm: 120x180" (gain: 139.00) -15C bin 1x1

Integration: 25.2 hours

Darks: ~30

Bias: ~50

Avg. Moon age: 4.92 days

Avg. Moon phase: 25.76%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 3049174

RA center: 4h 1' 14"

DEC center: +36° 27' 5"

Pixel scale: 2.304 arcsec/pixel

Orientation: 65.771 degrees

Field radius: 1.867 degrees

Resolution: 4656x3520

Locations: Monterey Pines Observatory, Monterey, California, United States

Data source: Backyard


Drifting through the Orion Arm of the Milky Way is the California Nebula (NGC 1499), a cloud of hydrogen and sulfur glowing red, orange, and yellow, with a wispy blue veil of oxygen. More than 100 light-years long, this "California shaped" mass is not far from the Pleiades star cluster in the constellation Perseus. In this rendition I see the Sierra Nevada mountains represented by the nebular ridges along the northeastern edge of the object, while the blue Pacific Ocean is represented by the veil of glowing oxygen fanning out from southwestern edge.

The combination of a William Optics GT71, 0.8X focal reducer, and the ASI1600MM results in a 3.82 degree X 2.55 degree field of view, wide enough to frame nearly all of the swirling perimeter structures of this beautiful nebula. I was fortunate to have clear, good quality skies for three successive nights, allowing me to collect more than 25 hours of excellent data (at f/4.7). This rendition is presented in a standard HST palette, a good choice to reveal the nebular folds and details of the main body of the object, and revealing the wispy veil of oxygen.