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Cave and Hydrogen field, 


            Tudor Chibacu
Cave and Hydrogen field
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Cave and Hydrogen field

Technical card

Imaging telescopes or lenses: Williams Optics GT71

Imaging cameras: QHY163M

Mounts: Skywatcher EQ6R Pro Sky Watcher EQ6R-PRO

Guiding cameras: QHY163M

Focal reducers: Williams Optic .8 Focal Reducer 0.8x Focal Reducer

Software: Sequence Generator Pro Seqence Generator Pro  ·  PixInsight PinInsight 1.8

Filters: OPTOLONG 31mm Ha, Oiii and S2

Accessory: Deep Sky Dad Autofocuser 2  ·  Altair Astro gpcam mono + 50mm guide scope

OPTOLONG 31mm Ha, Oiii and S2: 249x300" (gain: 200.00)
OPTOLONG 31mm Ha, Oiii and S2: 222x420" (gain: 200.00)

Integration: 46.6 hours

Bortle Dark-Sky Scale: 7.00

Basic astrometry details job: 2995152

RA center: 22h 54' 55"

DEC center: +62° 0' 54"

Pixel scale: 2.897 arcsec/pixel

Orientation: 2.624 degrees

Field radius: 1.784 degrees

Resolution: 3514x2704

Locations: Home Observatory Bortle 7, Kingston, Ontario, Canada

Data source: Backyard


HOO composition with Ha as luminance.
Very tough area to shoot. Oiii is extremely faint, especially in light pollution.
I really like how Halpha brought out the dark dust lanes.



Tudor Chibacu
License: Attribution Creative Commons

Sky plot

Sky plot


Cave and Hydrogen field, 


            Tudor Chibacu