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Contains:  IC 1848, IC 1805, NGC 896, NGC 884, Double cluster, NGC 869, NGC 281, NGC 7822, The star θCas, The star κCas, The star 50Cas, The star ζCas, The star ηCas, The star εCas, The star Ruchbah (δCas), The star Navi (γCas), The star Schedar (αCas), The star Caph (βCas), The constellation Cassiopeia (Cas)
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Cassiopeia and vicinity in H-alpha, 


Cassiopeia and vicinity in H-alpha

Cassiopeia and vicinity in H-alpha

Technical card

Resolution: 3341x2495

Dates:Sept. 29, 2017

Frames:Baader LRGB 1.25'' Filters, Ha, SII, OIII: 12x300" -20C bin 1x1

Integration: 1.0 hours

Darks: ~24

Avg. Moon age: 8.62 days

Avg. Moon phase: 62.99% job: 1756824

RA center: 14.414 degrees

DEC center: 60.876 degrees

Pixel scale: 27.744 arcsec/pixel

Orientation: 223.492 degrees

Field radius: 16.067 degrees

Locations: Home, Hornstein, Burgenland, Austria


I attached the Nikon AF-S DX 40mm 1:2.8 lens to my CCD via the Geoptik adapter. Due to a small tilt in the setup it was not possible to have perfect focus over the whole frame. I took totally 12 frames each 300s, half focussed the upper part, the other half the lower part of the picture. Then I stiched the two useful halfs together. So the effective exposure time is only 30min.



License: None (All rights reserved)

Sky plot

Sky plot


Cassiopeia and vicinity in H-alpha,