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Contains:  IC 1296, M 57, NGC 6720, Ring nebula in Lyra
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M 57 Ring nebula, 


            PGU (Giuliano Pin...
M 57 Ring nebula
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M 57 Ring nebula

Technical card

Imaging telescopes or lenses:Celestron C11 SCT

Imaging cameras:Starlight Xpress SXVF-H9

Mounts:Avalon Linear FR

Guiding telescopes or lenses:Sky-Watcher MC 90

Guiding cameras:Starlight Xpress SXV-Autoguider

Software:Maxim DLphotoshop

Filters:OIIIBaader Planetarium H-Alpha Filter

Dates:May 17, 2012July 16, 2012

Baader Planetarium H-Alpha Filter: 18x300" bin 2x2
Baader Planetarium H-Alpha Filter: 3x600" bin 2x2
OIII: 6x300" bin 2x2
OIII: 10x600" bin 2x2

Integration: 4.2 hours

Darks: ~21

Flats: ~22

Bias: ~20

Avg. Moon age: 26.71 days

Avg. Moon phase: 8.83%

Bortle Dark-Sky Scale: 6.00

Mean SQM: 18.64

Temperature: 22.60

Basic astrometry details job: 86534

RA center: 18h 53' 32"

DEC center: +33° 1' 37"

Pixel scale: 0.915 arcsec/pixel

Orientation: -177.518 degrees

Field radius: 0.104 degrees

Resolution: 654x486

Locations: Osservatorio EOS , Verona, VR, Italy


M 57 Ring Nebula, Lyra.
Riprese con filtri OIII & H-alpha, tricromia sintetica [Ha-OIII]-Ha-OIII-OIII[Ha].
Celestron C11 a piena focale f/10. CCD Starlight Xpress SXVF-H9



PGU (Giuliano Pin...
License: Attribution-NonCommercial Creative Commons

Sky plot

Sky plot


M 57 Ring nebula, 


            PGU (Giuliano Pin...