Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  California Nebula  ·  NGC 1499  ·  The star ξPer
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California Nebula SHO (NGC 1499), 



    
        

            Jesse Priolo
California Nebula SHO (NGC 1499)
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California Nebula SHO (NGC 1499)

Getting plate-solving status, please wait...
California Nebula SHO (NGC 1499), 



    
        

            Jesse Priolo
California Nebula SHO (NGC 1499)
Powered byPixInsight

California Nebula SHO (NGC 1499)

Technical card

Imaging telescopes or lenses: William Optics Gran Turismo 81 IV APO Triplet

Imaging cameras: ZWO ASI294MM Pro Cooled

Mounts: Sky-Watcher EQ6-R Pro

Guiding cameras: ZWO ASI290MM Mini

Focal reducers: Williams Optics Flat 6A III

Software: Adobe Photoshop 2021  ·  Nighttime Imaging 'N' Astronomy N.I.N.A. 1.10  ·  Pleaides Astrophoto PixInsight 1.8.8-7 Ripley

Filters: Astronomik OIII 36mm 6nm  ·  Astronomik H-Alpha 36mm 6nm  ·  Astronomik S2 36mm 6nm

Accessory: OAG


Dates:Jan. 25, 2021Feb. 21, 2021March 1, 2021

Frames:
Astronomik H-Alpha 36mm 6nm: 83x300" (6h 55')
Astronomik OIII 36mm 6nm: 101x300" (8h 25')
Astronomik S2 36mm 6nm: 75x300" (6h 15')

Integration: 21h 35'

Avg. Moon age: 12.53 days

Avg. Moon phase: 82.86%


Basic astrometry details

Astrometry.net job: 4289231

RA center: 04h00m52s

DEC center: +36°2407

Pixel scale: 2.475 arcsec/pixel

Orientation: 90.124 degrees

Field radius: 1.685 degrees


Resolution: 2738x4066

Data source: Backyard

Description

California Nebula in SHO

Opted to keep more of the green in this one than I normally do with my SHO renditions.

S2 75 x 300s

Ha 83 x 300s

O3 101 x 300s

Pixel Math Matrix

L: 0.5*Ha+0.25*O3+0.25*S2

R: S2

G: 0.85*Ha+0.15*O3

B: 0.9*O3+0.1*Ha

Shot over 10 nights, primarily from my urban/suburban porch, with a few hours of Bortle 3 rural site before moonrise. O3 was definitely faintest, and affected by bad moon gradient some nights, though DBE did a pretty good job of cleaning it up.

Comments

Sky plot

Sky plot

Histogram

California Nebula SHO (NGC 1499), 



    
        

            Jesse Priolo