Arp 335 (Gary Imm)

Arp 335

This object, also known as NGC 3509, is a disturbed galaxy located 360 million light years away in the constellation of Leo at a declination of +5 degrees. The object spans 1.7 arc-minutes in our apparent view, which corresponds to a huge diameter of 180,000 light years.

Dr. Arp placed this object in his final catch-all category of Miscellaneous, perhaps indicating that he didn't know quite what to make of it. His notes simply say "large luminous system".

Over the years, some have felt that this object is 2 merging galaxies. Arp’s image could be interpreted as such. But we have the advantage today of imaging in color, and it is clear from my image that this is one galaxy, albeit very disturbed. The central yellow core looks fairly normal, but the rest of the galaxy is a fascinating funhouse of treasures. The galaxy has two strong arms, with one twice as long as the other. Numerous star clusters are visible, included one intensely bright blue area right below the core.

It is likely that a companion caused this disturbance in NGC 3509. Some smaller galaxies are visible nearby, but no conclusive work has been done to indicate whether any of these are responsible for the disturbance.

The distant tiny galaxies on the right edge of the image are about 2 billion light years away.

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Status	Advanced success
Started	...
Astrometry.net job	4167251
PixInsight job	85S3QY1X89ZXVN7D2I8E1KNDLYPQJNTY
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	11h04m23s.614
RA (top/left)	11h04m59s.999
RA (top/right)	11h03m46s.158
RA (bottom/right)	11h03m47s.594
RA (bottom/left)	11h05m01s.660

Dec (center)	+04°49′51″.49
Dec (top/left)	+04°56′44″.76
Dec (top/right)	+04°56′15″.30
Dec (bottom/right)	+04°42′58″.40
Dec (bottom/left)	+04°43′27″.51

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Arp 335

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