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“Alkor” 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
DrBl 1 (PN-G: 107.1-14.9) in Andromeda
Planetary Nebula (candidate)
~ 1.3’
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And
several nights in autumn 2019
Object Dr21 (it is the main object in the picture) was discovered by Marcel Drechsler in May 2019. During image processing another nebula appeared at the lower right edge of the PN. According to present knowledge it is an independent nebula, it got the number DrBl 1 (PN-G: 107.1-14.9)
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