Astrodvorek Kamenne Zehrovice

NGC 4651 (Arp 189) - the Umbrella Galaxy

NGC 4561 

 

 

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..

20.-23.4.2020

 

Optics:

C
amera:
Filters:
Mount:
Guiding
Exposure:

Software:

NoName Newton 192/800
+ GPU c.c.
Atik One 6
LRGB Baader.
SW AZEQ-6
50mm guider + Lacerta MGEN
54x5 min. (L)
13x5 min. (R, G, B each), bin 2x2
PixInsight, Photoshop

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