Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  NGC 891
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NGC 891 - Mak 90/1250, Jacopo Fallai
NGC 891 - Mak 90/1250
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NGC 891 - Mak 90/1250

Getting plate-solving status, please wait...
NGC 891 - Mak 90/1250, Jacopo Fallai
NGC 891 - Mak 90/1250
Powered byPixInsight

NGC 891 - Mak 90/1250

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Description

--The image is still a work in progress and slightly edited--

This is a extreme test: aps-c DSLR with a f/13.8 Maksutov, on a guided Az-GTi!

The noise and vignetting are awful, but i'm wondering what can achieve if i'm going really really deep to improve signal/noise ratio?

The guide seems to handle well 120s subs at 1250mm, so if i've clear skys i'm thinking to continue projects like that, little DSOs with a little Mak!

Image is cropped, 'cause i can't correct well the big vignetting with flats, but i'm not a flat-wizard guy!

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    NGC 891 - Mak 90/1250, Jacopo Fallai
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  • NGC 891 - Mak 90/1250, Jacopo Fallai
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NGC 891 - Mak 90/1250, Jacopo Fallai