ASTRO: NGC 2336 a beautiful, rarely imaged spiral

NGC 2336 is a beautiful barred spiral 10 degrees from the north
celestial pole in Camelopardalis about 100 million light-years from us.
It has many nice arm segments that seem to come from a ring-like
structure around the end of the bar. The ring seems rather pink in my
image, apparently due to many unresolved HII regions. NED classifies it
as SAB(r)bc with a Seyfert 2 nucleus. The NGC project says SBc. It has
a companion well out of my field to the south, IC 0467. I might have
been able to catch both if I'd realized it was there. In any case they
don't appear to be interacting though are at the same distance. For
those with wider fields than mine they would make a good pair as both
have a lot of detail.

The reason I missed it is that NGC 2336 wasn't my only target. My other
target has been on my Arp-like list for some time. It is PGC 213387
which lies just to the north of NGC 2336. It looks to be a strong
candidate for Arp's category for spiral galaxies with a heavy arm.
Neither NED nor SIMBAD even list it! Though it does show up in my scope
control program, The Sky 6 Pro. Obviously very distant I wasn't able to
find much on it. I can't even recall how I came to add it to my Arp-like
to-do list. Fields this close to the pole seem to be well outside most
galaxy studies. About the only galaxies in NED in this field but for
NGC 3226 are entries from the 2MASX catalog of IR sources. None have
any distance information so I didn't bother to create an annotated image.

Another reason for imaging this field is that NGC 2336 might be related
to NGC 2146. I posted it September 27, 2012. The Usenet post is
archived at: http://www.spacebanter.com/showthread.php?t=189585 . It
is a very messed up galaxy thought by the HST group to be messed up by
interaction with some other galaxy. NGC 2336 is the only candidate I
could find within 5 degrees of it. While the DSS images of it showed no
hint of distortion I had to see if I could see any. Nope it doesn't
appear involved so that still leaves the distortion of NGC 2146 a bit of
a mystery unless it is the product of a merger which seems likely to me.

While the image came out rather well, it too suffered from my lousy
weather. I needed two months over many nights to get the 9 frames used
here. I never did get a second green frame and the one I did get was
very poor. I mostly treated this as a pseudo green image though the
green is based on weak green data. A process I've had to learn thanks
to my conditions of late.

This marks the last February 2013 image though it was started back in
January of 2013.

14" LX200R @ f/10, L=4x10' RB=2x10' G=1x10', STL-11000XM, Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net

Mighty image Rick.
I was sure that I have imaged this galaxy but had to find out that it was in
2002, so definately time for a reshoot.
Now it is back on my list. Unfortunately I have completely removed "done"
objects from my list until recently, so there are a lot of interesting
objects missing in my list even if I only have a very poor image.
Your image has put NGC 2336 on top of my schedule for January/February 2014.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
.com...

NGC 2336 is a beautiful barred spiral 10 degrees from the north
celestial pole in Camelopardalis about 100 million light-years from us.
It has many nice arm segments that seem to come from a ring-like
structure around the end of the bar. The ring seems rather pink in my
image, apparently due to many unresolved HII regions. NED classifies it
as SAB(r)bc with a Seyfert 2 nucleus. The NGC project says SBc. It has
a companion well out of my field to the south, IC 0467. I might have
been able to catch both if I'd realized it was there. In any case they
don't appear to be interacting though are at the same distance. For
those with wider fields than mine they would make a good pair as both
have a lot of detail.

The reason I missed it is that NGC 2336 wasn't my only target. My other
target has been on my Arp-like list for some time. It is PGC 213387
which lies just to the north of NGC 2336. It looks to be a strong
candidate for Arp's category for spiral galaxies with a heavy arm.
Neither NED nor SIMBAD even list it! Though it does show up in my scope
control program, The Sky 6 Pro. Obviously very distant I wasn't able to
find much on it. I can't even recall how I came to add it to my Arp-like
to-do list. Fields this close to the pole seem to be well outside most
galaxy studies. About the only galaxies in NED in this field but for
NGC 3226 are entries from the 2MASX catalog of IR sources. None have
any distance information so I didn't bother to create an annotated image.

Another reason for imaging this field is that NGC 2336 might be related
to NGC 2146. I posted it September 27, 2012. The Usenet post is
archived at: http://www.spacebanter.com/showthread.php?t=189585 . It
is a very messed up galaxy thought by the HST group to be messed up by
interaction with some other galaxy. NGC 2336 is the only candidate I
could find within 5 degrees of it. While the DSS images of it showed no
hint of distortion I had to see if I could see any. Nope it doesn't
appear involved so that still leaves the distortion of NGC 2146 a bit of
a mystery unless it is the product of a merger which seems likely to me.

While the image came out rather well, it too suffered from my lousy
weather. I needed two months over many nights to get the 9 frames used
here. I never did get a second green frame and the one I did get was
very poor. I mostly treated this as a pseudo green image though the
green is based on weak green data. A process I've had to learn thanks
to my conditions of late.

This marks the last February 2013 image though it was started back in
January of 2013.

14" LX200R @ f/10, L=4x10' RB=2x10' G=1x10', STL-11000XM, Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net