Dr 35 (PN-G 111.4-05.9) in Cassiopeia

MouseOver for object identification, Click on image for a zoomable, 75% resolution version

The Halpha-image:

The OIII-image:

Location / Date

Zellerndorf, August 2019

Telescope / Mount / Guiding

ASA 10" Astrograph, ASA 3" Wynne-Corrector (focal length 910mm)
ASA DDM60, no Guiding

Camera / Exposure

Moravian G3-16200, Astrodon filters

R         16 x 10min
G        16 x 10min
B        16 x 10min
Hα       26 x 20min
OIII       26 x 20min

Total exposure time: 25h 20min


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Dr 35 is a extremely faint possible planetary nebula in the constellation Cassiopeia. It was discovered by the German amateur astronomer and astrophotographer Marcel Drechsler (Sternwarte Bärenstein) in May 2019.

Coordinates: RA 23:30:41.108, Dec +55:04:11.82, diameter ~ 8.5 arc min

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