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  1. Galleries
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  3. Astrophotography
  4. » M27 - Dumbell nebula (also named Butterfly)

 
M27 - Dumbell nebula (also named Butterfly)...

Astrofoto 1

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M27 - Dumbell nebula (also named Butterfly) sent on August 01, 2022 (17:05) by MaxG.. 5 comments, 234 views. [retina]

Posa B f/4.0, tripod.

Scatto dal mio cielo di casa con la camera QHY268C . Frutto di 19 light da 180s Modalità High Gain (1) gain 56 offset 25 con filtro IDAS P2 + 22 light da 480s Modalità High Gain (1) gain 56 offset 25 con filtro Ha + 15 light da 360s Modalità High Gain (1) gain 56 offset 25 con filtro OIII (per un totale di 5h 23') + Flats, Bias, Dark & Dark flat. Utilizzata MPCCIII con ruota QHYCFW3 , QHYOAG e Lodestar X2 con ORION UK CT12 (300f4) su AZ-EQ6 GT. Software PHD2 e APT su Eagle I S; Elaborata con PS RT & LR (con tantissima fatica.. perchè non ho ancora imparato!)



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avatarsenior
sent on August 01, 2022 (19:55) | This comment has been automatically translated (show/hide original)

A subject that is not at all easy to bring out because of the sea of stars in which it is immersed.
With your configuration, unless you have a great sky, you need to shoot or process at least in Bin2.
The proposed image, in my opinion, has potential, I would revise the bottom of the sky, still too rich in gradients, and reduce the diameter of the stars a little. But it is already a good result.

avatarjunior
sent on August 01, 2022 (21:04) | This comment has been automatically translated (show/hide original)

You hit the mark!
From the single lights I realized that I had enough signal but as you say the details of the wings are weak and to extract them you have to strecciare a lot with consequent increase in noise and gradients .. as they have already advised me I know that sooner or later we will have to switch to pixinsight .. sti gradients with PS are making me freak out.. then we add that the processing in narrow band acquired with color camera is a further limit and the picture is disastrous .. :-( . However, things from this (mediocre) level up get really hard!

avatarsenior
sent on August 01, 2022 (21:19) | This comment has been automatically translated (show/hide original)

If it can help you, we can see in private what can come out of it with PixInsight.

avatarjunior
sent on August 01, 2022 (21:25) | This comment has been automatically translated (show/hide original)

That would be cool.. maybe convince me of the whole .. as soon as I can I prepare a WeTransfer with lights and calibration masters .. obviously as long as it does not disturb too much ... I would like ..

avatarsenior
sent on August 01, 2022 (21:31) | This comment has been automatically translated (show/hide original)

No ;) disturbance


RCE Foto

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