NGC 6027 - Seyfert's sextet. (astroeyes)

Celestial hemisphere: Northern · Constellation: Serpens (Ser) · Contains: NGC 6027

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NGC 6027 - Seyfert's sextet.

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NGC 6027 - Seyfert's sextet.

Here's an interesting galaxy grouping. Similar to Stephan's Quintet, this is

Seyfert's Sextet! Amazingly, one of the galaxies in the group has a vastly

different redshift from the others in the group, just as we have with Stephan's

Quintet. Isn't that a rather odd coincidence?

My image is poor, the result of extremely poor visibility and indifferent

guiding (balance I think, it was superb till I moved to a different part of the

sky) - I'm still not convinced about the merits of guiding for the type of

imaging I do but that's another story. The galaxy with the offending redshift,

ngc 6027D is in actual fact a spiral, not resolved in my image.

Here are some details about the 6 members of the group:

ngc 6027 type S0 pec magn. 14.7 redshift ~ 4400 km/s

ngc 6027a type Sa pec magn. 14.9 redshift ~ 4500 km/s

ngc 6027b type S0 pec magn. 15.3 redshift ~ 4000 km/s

ngc 6027c type SBc magn. 16.7 redshift ~ 4600 km/s

ngc 6027d type SBbc magn. 16.5 redshift ~ 20000 km/s

ngc 6027e type SB ? magn. 16.7 redshift ~ 4100 km/s

So is 6027D a part of the group, or is it just a chance optical alignment?

This image the result of 24 x 2 minute exposures, before the seeing regenerated

to the point where I was getting hardly any signal from the H9C. I'll go back

and get some better data if we ever get a decent sky again.

Original
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B

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Status	Basic success
Started	...
Astrometry.net job	3302033
PixInsight job	n/a
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NGC 6027 - Seyfert's sextet.

NGC 6027 - Seyfert's sextet.

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NGC 6027 - Seyfert's sextet.

NGC 6027 - Seyfert's sextet.

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