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Comet 46P/Wirtanen — Dec. 6th, 2018 — Nova Odessa, Brazil, 





    
        

            Matheus Pratta

Comet 46P/Wirtanen — Dec. 6th, 2018 — Nova Odessa, Brazil

Technical card

Resolution: 5809x3732

Date:Dec. 6, 2018

Time: 01:38

Frames: 20

Focal length: 140

Seeing: 3

Transparency: 4

Data source: Backyard

Description

Shot from my front yard, in Nova Odessa (São Paulo, Brazil) suburban area.
No motorized mount or equatorial mount was used, just my good old tripod, Stellarium and some trial and error for locating it.

Stacked from 20x3.2" light frames + 5x3.2" dark frames, at ISO12800 on my Sony a6300.
Lens used was a Jupiter 21M (200mm), at f/4 and a Viltrox Speedbooster, acting as focal reducer (~0.71X), bringing the lens to around 140mm f/2.8, which allowed most of the brightness in the picture in first place.

Special thanks to my dad and my dog for the great company and for the awesome night hunting for the comet.

Comments

Author

matt_pratta
Matheus Pratta
License: Attribution-NonCommercial-ShareAlike Creative Commons
961
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Comet 46P/Wirtanen — Dec. 6th, 2018 — Nova Odessa, Brazil, 





    
        

            Matheus Pratta