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Cygnus Central, 



    
        

            tommy_nawratil

Cygnus Central

Technical card

Imaging telescopes or lenses: Samyang 135mm f/2 ED UMC

Imaging cameras: Canon Eos6da

Mounts: SkyWatcher Star Adventurer

Software: Photoshop  ·  Pleiades Astrophoto, S.L. Pix Insight


Dates:Aug. 7, 2015

Frames: 208x120"

Integration: 6.9 hours

Avg. Moon age: 22.59 days

Avg. Moon phase: 45.35%


Basic astrometry details

Astrometry.net job: 766319


Resolution: 5325x3607

Locations: my lovely garden, near Vienna, Austria; Grossmugl by the Milky Way, Vienna, Austria

Data source: Traveller

Description

first light of the Samyang 135mm at open f/2 - it is sharp to the edge of the fullframe Eos6da. Like a mini Hyperstar, but without tilt problem :-)
I shoot the RAWs - 2min Subs at Iso400 - on two locations actually, at SQM19.9 and 20.8 - here is a comparison, and surprisingly the difference is not as big as I expected, when the RAWs are stretched to equal lightness:
http://www.astronomieforum.at/viewtopic.php?f=4&t=10756

Objects abound in the picture, from famous to infamous. For the latter note the tiny blip of Sh2-106 the little hourglass nebuls in Cygnus. You know where to look for? Also I identified 4 reflection nebulae. Hope you have fun exploring them!

Comments

Author

tommy_nawratil
tommy_nawratil
License: None (All rights reserved)
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Histogram

Cygnus Central, 



    
        

            tommy_nawratil