Arp 23


Gregg Ruppel
 

Hi

Arp 23 consists of NGC 4618 and 4625, both cataloged by Arp as 'one-armed spirals':

http://www.greggsastronomy.com/IMAGES/arp23-LRGB.jpg

NGC 4625 appears to have an almost complete ring, as well as a faint companion just to its east (NGC 4625A?).

1.3X crop
http://www.greggsastronomy.com/IMAGES/arp23-LRGBcrop.jpg

LRGB, 6 hours total exposure from Dark Sky New Mexico.

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site
http://www.greggsastronomy.com/

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