Telscope & Camera:
Exposure time total:
Lacerta N25010c Newtonian, f/D = 4
SX Trius 694, Baader LRGB filter
10micron GM2000 HPS II
[OIII] 31x20 min / Ha 59x20 min / RGB 13x5 min per filter
33 h 15 min
data acquired remotely using CCD Commander
image acquisition and pre-processing by Markus Blauensteiner
image editing by Marcel Drechsler
Dr 21 (PN-G: 107.1-14) in Andromeda
Planetary Nebula (candidate)
several nights in autumn 2019
The object was discovered in May 2019 by Marcel Drechsler.
Almost in the middle there is a white dwarf.
It is probably a planetary nebula. At the lower right edge of the PN
there is a newly discovered nebula - DrBl 1.