ASTRO: Arp 212

Arp 212 (NGC 7625) is a small galaxy far closer to us than Arp 15 I
posted a couple days ago, being only about 60 light years away. It is
classed as an SA(rs)A pec spiral and by Arp as an unclassifiable galaxy
with "irregularities, absorption and resolution", whatever "resolution"
means. It seems a catch all category. Today most consider it a polar
ring galaxy but the ring is not illuminated as it consists mostly of
dust and non ionized hydrogen gas though some HII is seen. Those
interested in what all this means can go to this link for more info.
http://arxiv.org/PS_cache/arxiv/pdf/...808.1696v1.pdf

Seeing was far better for this image than for Arp 15 and this time using
1x1 binning did pick up additional detail. I even pick up detail that
Arp using the Palomar 200" telescope didn't. So I had better seeing
than Palomar this night.
http://nedwww.ipac.caltech.edu/level...res/arp212.gif
http://nedwww.ipac.caltech.edu/level...ig_arp212.jpeg

To make a polar ring a galaxy it is usually considered necessary to
have to have encountered another galaxy. Again, none is seen in the
area. But it could have happened some time ago. A dwarf galaxy far out
of my field of view to the upper left (north east) is mentioned in the
PDF link above as a possible candidate but this is still somewhat uncertain.

14" LX200R @ f/10, L=7x10' RGB=2x10', STL-11000XM, Paramount ME

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Rick Johnson wrote:
Arp 212 (NGC 7625) is a small galaxy far closer to us than Arp 15 I
posted a couple days ago, being only about 60 light years away.
cut
????? 60 lightyears ?????

Sjouke Burry wrote:

Rick Johnson wrote:

Arp 212 (NGC 7625) is a small galaxy far closer to us than Arp 15 I
posted a couple days ago, being only about 60 light years away.

cut
????? 60 lightyears ?????

Would you believe 60 million light-years? I only missed it by one word.

Rick

Rick Johnson wrote:

Sjouke Burry wrote:

Rick Johnson wrote:

Arp 212 (NGC 7625) is a small galaxy far closer to us than Arp 15 I
posted a couple days ago, being only about 60 light years away.
cut
????? 60 lightyears ?????

Would you believe 60 million light-years? I only missed it by one word.

Rick

Ahhhhhhh... thats quite a relief...

Great detail Rick. This galaxy has strange dark lanes.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
ster.com...
Arp 212 (NGC 7625) is a small galaxy far closer to us than Arp 15 I
posted a couple days ago, being only about 60 light years away. It is
classed as an SA(rs)A pec spiral and by Arp as an unclassifiable galaxy
with "irregularities, absorption and resolution", whatever "resolution"
means. It seems a catch all category. Today most consider it a polar
ring galaxy but the ring is not illuminated as it consists mostly of
dust and non ionized hydrogen gas though some HII is seen. Those
interested in what all this means can go to this link for more info.
http://arxiv.org/PS_cache/arxiv/pdf/...808.1696v1.pdf

Seeing was far better for this image than for Arp 15 and this time using
1x1 binning did pick up additional detail. I even pick up detail that
Arp using the Palomar 200" telescope didn't. So I had better seeing
than Palomar this night.
http://nedwww.ipac.caltech.edu/level...res/arp212.gif
http://nedwww.ipac.caltech.edu/level...ig_arp212.jpeg

To make a polar ring a galaxy it is usually considered necessary to
have to have encountered another galaxy. Again, none is seen in the
area. But it could have happened some time ago. A dwarf galaxy far out
of my field of view to the upper left (north east) is mentioned in the
PDF link above as a possible candidate but this is still somewhat
uncertain.

14" LX200R @ f/10, L=7x10' RGB=2x10', STL-11000XM, Paramount ME

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

would you believe :) missed by that much ...
classic - thanks Rick


Rick Johnson wrote:


Sjouke Burry wrote:

Rick Johnson wrote:

Arp 212 (NGC 7625) is a small galaxy far closer to us than Arp 15 I
posted a couple days ago, being only about 60 light years away.

cut
????? 60 lightyears ?????

Would you believe 60 million light-years? I only missed it by one word.

Rick