NGC 4651 is a
spiral galaxy located in the constellation of Coma Berenices
at a distance not well determined that ranges from 35
million light years to 72 million light years. This
member of the Virgo Cluster, located on its outskirts, is
known as the
Umbrella Galaxy
due to the umbrella-shaped
structure that extends from its disk to the east and that it
is composed of stellar streams, being the remnants of a much
smaller galaxy that has been torn apart by NGC 4651's tidal
forces, something that explains why NGC 4651 has been
included on Halton Arp's Atlas of Peculiar Galaxies as Arp
189 - galaxy with filaments.
(wikipedia)
To capture the umbrella was not
exactly easy, it's surface brightness was rather low..To capture the umbrella was not
exactly easy, it's surface brightness was rather low..
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Optics:
NoName
Newton 192/800
+
GPU c.c.
Camera:
Atik One 6
Filters:
LRGB Baader
Mount:
SW AZEQ-5
Guider: Lacerta MGEN, 50 mm finder
Exposure:
54x5 min. (L)
13x5 min. (R, G, B each), bin 2x2
Software: PixInsight, Photoshop
20.-23.4.2020
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