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M76 in HOO with OSC, 


            Cedric Raguenaud
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M76 in HOO with OSC

Imaging telescopes or lenses: Skywatcher 300/1500

Imaging cameras: QHYCCD 183C

Mounts: Skywatcher EQ8 pro

Guiding telescopes or lenses: TS-Optics OAG

Guiding cameras: ZWO ASI120MM

Focal reducers: Baader MPCC Mark III Coma Corrector

Software: Sequence Generator Pro  ·  Gimp 2.10  ·  PixInsight 1.8 Ripley

Filters: STC Dual Narrowband filter

Accessory: Home made focuser

Dates:Sept. 5, 2020Sept. 6, 2020Sept. 7, 2020Sept. 8, 2020Sept. 9, 2020Sept. 10, 2020

Frames:STC Dual Narrowband filter: 120x600" (gain: 16.00) -15C bin 1x1

Integration: 20.0 hours

Avg. Moon age: 19.99 days

Avg. Moon phase: 70.99%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 21.57

Astrometry.net job: 3845748

RA center: 1h 42' 19"

DEC center: +51° 34' 32"

Pixel scale: 0.598 arcsec/pixel

Orientation: -6.885 degrees

Field radius: 0.205 degrees

Resolution: 2048x1383

Locations: ORCA Observatory, Near Matha, Charente-Maritime, France

Data source: Own remote observatory


This is my second attempt at doing HOO with an OSC+dualband filter. The weather and the moon didn't cooperate and most of the maging was done around the full moon inbetween clouds.

The target is a bit small with 1500mm focal length, so it lacks a bit of detail. I was hoping better.



Cedric Raguenaud
License: Attribution-NonCommercial-ShareAlike Creative Commons

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M76 in HOO with OSC, 


            Cedric Raguenaud