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Montes Apenninus sent on 18 Marzo 2018 (19:56) by Marco Di Francesco. 6 comments, 879 views.

Al bordo sud-est del Mare Imbrium si estendono gli Appennini lunari, una catena montuosa lunga 600 km con picchi che oltrepassano i 5000 metri di altezza -------- 09/03/2018 - Telescopio Meade ETX-125EC a F/15, camera ASI120MM, filtro infrarosso, somma di 200 frames acquisiti con SharpCap3, elaborazione Avistack2 + Photoshop CS6

11 persons like it: Albertopantellini, Andrea Moriconi, Angelo Adorisio, Angelo959, Boguslaw Zajac, Fabioviti, Flyinglegor, Giampaolo Riva, Paoloeffe, Slashleo, Tristan

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Slashleo

sent on 19 Marzo 2018 (10:12) | This comment has been automatically translated (show/hide original)

Beautiful picture, I also have the same portable equipment ... I can not wait for there to be a crack in the clouds to pull the equipment out ... :-(

Marco Di Francesco

sent on 19 Marzo 2018 (12:53) | This comment has been automatically translated (show/hide original)

Thank you as always dear, even if this image reviewing it seems to me have problems with alignment of the frames, it seems to move. Before posting it seemed decent: tonight I know that I take it off and try to rework it. I do not like.

Slashleo

sent on 19 Marzo 2018 (15:46) | This comment has been automatically translated (show/hide original)

I attributed the problem to seeing not exactly perfect ... we are going to see what happens! ;-)

Andrea Moriconi

sent on 20 Marzo 2018 (14:15) | This comment has been automatically translated (show/hide original)

Marco these photos are fantastic !!
Can I ask you from a layman, why do you have to take 200 photos to get this result?
A greeting
Andrew

Marco Di Francesco

sent on 20 Marzo 2018 (15:18) | This comment has been automatically translated (show/hide original)

Actually, no photos are taken but a short video is captured via a CCD camera or camera. Then you give the movie to specific programs that analyze the hundreds of frames (frames), select the best ones (not damaged by moments of excessive atmospheric turbulence) and add them together (stacking). This causes the details (adding them) to be highlighted, while the spurious pixels that form the "noise" cancel each other out.
It's a very brief explanation: in reality there are dozens of parameters that interfere with the result and that must be selected manually according to the subject taken and their own experience ... ;-)
Thank you for your compliments.

Andrea Moriconi

sent on 22 Marzo 2018 (23:53) | This comment has been automatically translated (show/hide original)

Thanks to you for the explanation is even more compliments! !

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