Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  California Nebula  ·  NGC 1499  ·  Part of the constellation Perseus (Per)  ·  The star 42Per  ·  The star 50Per  ·  The star Atik (ζPer)  ·  The star εPer  ·  The star ξPer
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California Nebula - NGC1499 -  HaRGB, 



    
        

            Wes Schwarz
California Nebula - NGC1499 -  HaRGB
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California Nebula - NGC1499 - HaRGB

Getting plate-solving status, please wait...
California Nebula - NGC1499 -  HaRGB, 



    
        

            Wes Schwarz
California Nebula - NGC1499 -  HaRGB
Powered byPixInsight

California Nebula - NGC1499 - HaRGB

Technical card

Imaging telescopes or lenses: Samyang 135mm f/2

Imaging cameras: Canon T3i 600D Unmodded  ·  Canon 60d Monochrome Debayered and Full Spectrum Clear Glass  ·  Canon T2i 550D Full Spectrum Clear Glass Mod

Mounts: Celestron CGE

Software: Adobe Photoshop CC 2017  ·  PixInsight 1.8 Ripley PixInsight  ·  Sharpcap

Filters: Astronomik 6nm Ha Clip Filter  ·  Astronomik UV/IR Filter - Canon EOS APS Clip


Dates:Nov. 18, 2017Nov. 24, 2017

Frames:
Astronomik 6nm Ha Clip Filter: 12x180" (36') ISO1600
Astronomik 6nm Ha Clip Filter: 72x210" (4h 12') ISO1600
Astronomik 6nm Ha Clip Filter: 20x300" (1h 40') ISO1600
Astronomik UV/IR Filter - Canon EOS APS Clip: 227x60" (3h 47') ISO1600

Integration: 10h 15'

Darks: 40

Flats: 75

Bias: 700

Avg. Moon age: 2.69 days

Avg. Moon phase: 14.65%

Bortle Dark-Sky Scale: 3.60

Mean SQM: 21.60


Basic astrometry details

Astrometry.net job: 3698328

RA center: 04h03m01s.4

DEC center: +35°1207

Pixel scale: 6.825 arcsec/pixel

Orientation: 87.363 degrees

Field radius: 5.768 degrees


Resolution: 5147x3244

Data source: Traveller

Description

This is data from fall 2017 on NGC 1499 aka the California Nebula. I used 2 color cameras and one mono to generate this composite. I used a 6nm Ha filter over 2 nights on the mono camera. The color cameras were equipped with uv/ir cut filters

227 x 60s subs total between the osc cameras at 60s

550d and 600d

6nm Ha 20 x 300s subs, 36x 210s subs, and 12 x 180s subs mono 60d

skies mag 21.6

seeing 4/5

Lens-Samyang 135mm F2 at F2

transparency started 5/5 then dropped to 1/5 and caused me to dump half of the subs. This is very tedious to sort out and usually I do not process data for a long time when I have to go through and identify clouds that spoil my images.

Comments

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Histogram

California Nebula - NGC1499 -  HaRGB, 



    
        

            Wes Schwarz