NGC 3953 in Ursa Major

NGC 3953 Galaxy Astrophotography Martin Rusterholz

NGC 3953 belongs to the Ursa Major Cluster of galax­ies, some 50 mil­lion light-years dis­tant. The appar­ent dia­met­er of this bared spir­al galaxy meas­ures 6.0x3.2 arc min, which coresponds to about 90’000 light-years in reality.

The Ursa Major Cluster con­sists of at least 79 mem­bers accord­ing to vari­ous papers. Beside the low-sur­face galaxy UGC 6840/​PGC 37164 vis­ible in the upper left part of this image, NGC 4051 and NGC 3729 are addi­tion­al bright mem­bers of this cluster.

[descrip­tion from O’Meara]

Details

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RCOS 14.5″ f/​8
ASA DDM85
Apo­gee U16M
Astro­don Gen2
LRGB 440:180:180:180 min.
ROSA Remote Obser­vat­or­ies South­ern Alps
© Mar­tin Ruster­holz, Astrophotographer

Find­er Chart NGC 3953 

M15 in Pegasus Sky Chart Astrophotography Martin Rusterholz

Image cre­ated by Skychart