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NGC 1499, the California Nebula [section] S.Ha.H-beta, 





    
        

            Stephen Garretson
NGC 1499, the California Nebula [section] S.Ha.H-beta

NGC 1499, the California Nebula [section] S.Ha.H-beta

Technical card

Resolution: 2265x1708

Dates:Nov. 8, 2018Nov. 9, 2018Nov. 13, 2018Nov. 14, 2018

Frames:
Baader 3.5nm Ha filter, 2": 40x180" (gain: 139.00) -20C bin 1x1
Baader 8.5 H-Beta filter, 2": 40x180" (gain: 139.00) -20C bin 1x1
Baader 8nm SII filter, 2": 40x180" (gain: 139.00) -20C bin 1x1

Integration: 6.0 hours

Darks: ~15

Flats: ~30

Flat darks: ~15

Bias: ~42

Avg. Moon age: 3.64 days

Avg. Moon phase: 18.67%

Bortle Dark-Sky Scale: 6.00

Astrometry.net job: 2371624

RA center: 3h 59' 42"

DEC center: +36° 43' 1"

Pixel scale: 2.116 arcsec/pixel

Orientation: 267.801 degrees

Field radius: 0.834

Locations: Beevo Dome [home observatory], Louisville, CO, United States

Data source: Backyard

Description

Here's the same section after adding SII data. As with the HOO modified to Ha.H-beta.H-beta image, I substituted H-beta for OIII data. 100% in each channel; e.g., Red is 100% SII. The differences between this treatment and the Ha.H-beta.H-beta image are not huge, but I do like this better.

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Author

StephenGarretson
Stephen Garretson
License: None (All rights reserved)
350
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NGC 1499, the California Nebula [section] S.Ha.H-beta, 





    
        

            Stephen Garretson