Celestial hemisphere:  Northern  ·  Constellation: Pisces (Psc)  ·  Contains:  NGC 660
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NGC 660, Doug Summers
NGC 660
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NGC 660

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NGC 660, Doug Summers
NGC 660
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NGC 660

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Description

Only ~45 million light-years away, one would think that NGC 660 would allow for close up inspection of collision details causing the ring, but the size of the galaxy is on the small side.  It is estimated at 80K light-years in diameter.   The "polar ring" designation indicates a collision has caused a ring of star forming material around the galaxy's core.  Polar ring collision geometry is not very common; only a dozen or so examples have been found to date.   The collision that created the ring is estimated (source Hubble) at 1 billion years ago.   In this OSC look, we can see the ring, even if the details are not highly resolved.

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  • NGC 660, Doug Summers
    Original
  • Final
    NGC 660, Doug Summers
    B

B

Description: reprocessed for BXT linear deconvolution. Darkened background just a bit too.

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NGC 660, Doug Summers

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