Sunday, 1 December 2013

NGC 6826

NGC 6826 / C15 / Blinking planetary nebula
Constellation - Cygnus
Planetary nebula
Distance 4.2Kly
Mag 8.89

Date 30/11/13
Seeing - Antoniadi II
Transparency - 3/5
SQM 21.52 (LM 6.4)

Telescope - 16" f/4.5
EP - 10mm Delos + x2 Barlow x379 TFoV 0.11"

Sketch notes
After sketching the Cat eye nebula someone on Cloudy Nights mentioned that you can infact use extremely high magnifications on Planetary nebula which will help show contrast within the PN and well yes it works! :)

At around x200 the central star was obvious but apart from that it just showed as a green smudge. A x2 barlow and 10mm Delos showed a bright bottom edge with hints of detail within but I was confident enough in what I was seeing to record it. I also tried barlowing a 8mm Delos giving x473 but the light wind made the view quite unsteady.

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