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Contains:  Helix galaxy, NGC 2685
Getting plate-solving status, please wait...
The Helix Galaxy in Color, 


            Edoardo Luca Radi...
The Helix Galaxy in Color

The Helix Galaxy in Color

Technical card

Imaging telescope or lens:C9.25

Imaging camera:SBIG ST-2000XM

Mount:10 Micron GM1000 HPS


Filter:Astrodon LRGB CCD 1.25"

Resolution: 1390x1008

Dates:March 8, 2014

Astrodon B CCD 1.25": 10x240" -25C bin 2x2
Astrodon G CCD 1.25": 10x240" -25C bin 2x2
Astrodon L CCD 1.25": 30x600" -25C bin 1x1
Astrodon R CCD 1.25": 10x240" -25C bin 2x2

Integration: 7.0 hours

Darks: ~50

Flats: ~40

Bias: ~50

Avg. Moon age: 7.32 days

Avg. Moon phase: 49.38%

Bortle Dark-Sky Scale: 6.00

Temperature: 3.00 job: 202931

RA center: 133.896 degrees

DEC center: 58.730 degrees

Orientation: -90.453 degrees

Field radius: 0.170 degrees

Locations: Portole, Sale Marasino, Brescia, Italy


NGC 2685 is a rare polar-ring galaxy in the constellation Ursa Major formed probably from a merger from two galaxies.

As explained here the night was far from perfect for imaging: I thought that the color information in the RGB exposure were completely unusable.

But I rarely give up without fighting, so I've tried and tried to get a decent image from RGB and finally I succeeded.

so here's my first ever LRGB image :-D

NGC 2685 è una rara galassia ad anello polare nella costellazione dell'Orsa Maggiore formata probabilmente dalla fusione di due galassie.

Come spiegato qui la notte era ben lungi dall'essere perfetta per l'imaging: Ho pensato che le informazioni sul colore dalle pose in RGB fossero completamente inutilizzabili.

Ma io raramente mi arrendo senza combattere, così ho provato e ho cercato di ottenere una immagine decente dal set RGB ed infine ce l'ho fatta.

Ecco la mia primissima immagine LRGB :-D



Edoardo Luca Radi...
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


The Helix Galaxy in Color, 


            Edoardo Luca Radi...

In these public groups

Imagers of Italy