Hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  The star ο1CMa
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Dolphin Nebula 2 hours with OSC !, 


            Alberto Vezzani
Dolphin Nebula 2 hours with OSC !
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Dolphin Nebula 2 hours with OSC !

Technical card

Imaging telescopes or lenses: Tecnosky Apo 70 / 350

Imaging cameras: ASI ZWO 294MC-PRO

Mounts: Skywatcher AZ EQ-6 GT

Guiding telescopes or lenses: ArteSky 70/400 guiding scope

Guiding cameras: ASI 120MM Mini

Filters: Optolong Ir UV cut  ·  Baader O3 8.5nm

Dates:Feb. 14, 2021

Optolong Ir UV cut: 9x360" (gain: 120.00) -30C
Baader O3 8.5nm: 8x600" (gain: 120.00) -30C

Integration: 2.2 hours

Darks: ~60

Flats: ~60

Flat darks: ~60

Avg. Moon age: 2.63 days

Avg. Moon phase: 7.61%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details

Astrometry.net job: 4236062

RA center: 6h 54' 13"

DEC center: -23° 49' 8"

Pixel scale: 2.772 arcsec/pixel

Orientation: 87.689 degrees

Field radius: 1.857 degrees

Resolution: 3996x2703

Data source: Traveller


A miracle probably in the sky for a night ! subject for 2 hours visibile from 10° to 19° before going in the back of the mountain , if some deer would have crossed on the summit probably will have ruined my shots :D :D
I will pay my tribute to this subjetc in integrating and perfectioning the acquisition when it will be possible again :)