Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  37 Cyg)  ·  NGC 6910  ·  The star Sadr (γ Cyg
IC 1318 and Sadr, Ernie Mastroianni
IC 1318 and Sadr
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IC 1318 and Sadr

IC 1318 and Sadr, Ernie Mastroianni
IC 1318 and Sadr
Powered byPixInsight

IC 1318 and Sadr

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Description

Unguided, but polar alignment was within one arc-minute of the pole. The bloated appearance of Sadr is likely due to the 11 elements  of this Sigma telephoto lens. Internal reflections from so many surfaces will register on the sensor in long time exposures.,

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IC 1318 and Sadr, Ernie Mastroianni