|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
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 |
#2
|
|||
|
|||
ASTRO: NGC 2336 a beautiful, rarely imaged spiral
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 |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
ASTRO: LBN 564 A rarely imaged nebula | Rick Johnson[_2_] | Astro Pictures | 1 | December 6th 08 04:09 PM |
ASTRO - Supernova 2007uy - Imaged January 3rd 2008 | ukastronomy | Amateur Astronomy | 0 | January 13th 08 09:26 AM |
ASTRO - Supernova 2007uy - Imaged January 3rd 2008 | ukastronomy | UK Astronomy | 0 | January 13th 08 09:26 AM |
A POSTER-SIZED IMAGE OF THE BEAUTIFUL BARRED SPIRAL GALAXY NGC 1300(STScI-PRC05-01) | INBOX ASTRONOMY: NEWS ALERT | Amateur Astronomy | 0 | January 11th 05 01:13 AM |
A POSTER-SIZED IMAGE OF THE BEAUTIFUL BARRED SPIRAL GALAXY NGC1300(STScI-PRC05-01) | INBOX ASTRONOMY: NEWS ALERT | Astronomy Misc | 0 | January 11th 05 01:12 AM |