Contains: California nebula, NGC 1499, The star 50Per, The star ξPer
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California Nebula - LRGB

Technical card

Resolution: 1824x1811

Dates: Sept. 27, 2014Oct. 19, 2014

Astrodon E-series Lum: 8x900" -20C bin 1x1
Astrodon Red G2E: 12x300" -20C bin 1x1
Blue Astrodon G2E: 12x300" -20C bin 1x1
Astrodon Green G2E: 12x300" -20C bin 1x1

Integration: 5.0 hours

Avg. Moon age: 14.24 days

Avg. Moon phase: 13.96% job: 875142

RA center: 60.381 degrees

DEC center: 36.271 degrees

Pixel scale: 7.697 arcsec/pixel

Orientation: 89.096 degrees

Field radius: 2.749 degrees


Kinda fun and tough one to process because of all the surrounding dust.

One thing is for sure ... this is an object that would most certainly benefit from the added detail acquired by narrowband filters. I may have to go back and revisit this one with Ha and OIII in the future.

As always, thank you for taking the time to look and all comments/criticisms are welcome.


Revision B:
- due to some very much appreciated candid feedback (thank you; Adam, Jim and 'Ratter) I've gone back and brought the colours back to something a bit more *realistic*
- converted to LAB mode in PS and adjusted "b" channel
- rotated to a more familiar presentation

Rev C:
- increased depth and contrast
- slight colour boost to cover contrast change




Sky plot

Sky plot


California Nebula - LRGB, Hytham