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Arp 269



Arp 269 in Canes Venatici

RA =12 hrs 30 min; Dec = 41 deg 40 min.

Date & Site:

Imaged on 3/20/2015; Little Blair Valley, Anza Borego, CA

Conditions: calm; 50 degrees; poor seeing and transparency, clear


Telescope: DSI RC10C 1867 mm fl at f/7.3

Mount: Astro-Physics 1100
Camera: ST-10XME; CFW10; Internally autoguided


Exposures: 2 hrs 50 min lum (10 min subs) and 30 min each of RGB (5 min subs) for total of 4 hrs 20 min.

Also cataloged as NGC 4485 (upper) and NGC 4490 (lower), these interacting galaxies were severely distorted by each other’s gravitational pull during a collision long ago. This pair shows interesting features including the bridge of stars connecting the two galaxies spanning 24,000 light years. A large number of star-forming regions and young star clusters have developed along the facing sides of each galaxy, likely from debris left over from ther collision.

Click here for more information on the Arp Peculiar Galaxies.

FOV =23 x 15 arc minutes

45 million light years away

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