Object name: NGC2340

Designation(s): NGC2340, NGC2330, NGC2332, NGC2334, IC458, IC459, IC460, IC461, IC463, IC464, IC465, IC462,

NGC 2340 is the largest and brightest member of the WBL 133 galaxy group located about 275 million light-years away in the constellation of Lynx and not far from the far larger Abell 569. The group contains some 13 members though not all are withing my image. I should have moved 2340 from the center to capture more of them but this was taken automatically as I slept so the scope just obeyed my instructions to center on 2340. As with most groups the members are mostly elliptical and S0 galaxies and thus showing the golden color of old stars due to the lack of new star formation. Apparently these galaxies have so interacted with other members of the group that the dust and gas needed for star formation has been stripped from them leaving them to slowly redden and fade away.

The spherical galaxy to the upper left of NGC 2340 is IC 465 and maybe also NGC 2334. Why the "maybe"? Seems there's lots of problems with the visual observations that created the NGC catalog. This is one of them. Since the catalog is numbered in RA order (at the time of the catalog, precession has changed things somewhat since then when looking at galaxies today on opposite sides of the sky) it should be west of NGC 2340 not east. This is the first hint that something may be wrong. For further information I'll refer you to Dr. Corwin's discussion at the NGC catalog. Scroll down to NGC 2334 and click on the data button then scroll down that window for the lengthy discussion.

The large elliptical near the right edge nearly directly west of NGC 2340 is NGC 2332 or NGC 2330 NED says it is both. Below it is IC 457 which may or may not be NGC 2330. This problem is included in the lengthy discussion of IC 465/NGC 2334 in the above link. Edit: With the NGC project partly in limbo that link is broken use and find NGC 2330.

I've made an annotated image showing member galaxies as well as a few non member ones. If they are a member no distance is given. If a non member the distance in millions of light-years is appended to the name. Some have no red shift data so are noted with a ? for distance.

There are some other ID problems in this image. IC 462 is just a blue star. Could it be the observer saw the nearby galaxy but got the position of the star by mistake? I can't find anything on this one.

Then there's the blue object I've identified as [VCV2001] J071006.8+500245 at almost 2 billion light-years. NED shows many different catalog entries for it. One, the one I used, says it is a quasar, one of the closest known. Another calls it a galaxy (RX J0710.0+5002 ID) as well as an X-ray source. It's shown as an IR source in the 2MASS catalog (2MASSi J0710068+500246). It is also listed in several radio catalogs. It certainly is using most of the spectrum. Due to its strong blue color, typical of "nearby" quasars I chose to go with the quasar designation.

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

Related Designation(s):

2MASS J07092839+5009090, 2MASS J07103418+5007080, 2MASS J07103869+5010383, 2MASS J07104427+5012086, 2MASS J07104504+5004532, 2MASS J07105596+5010515, 2MASS J07110088+5007036, 2MASS J07110476+5008126, 2MASS J07111080+5010289, 2MASS J07113366+5014539, 2MASX J07092835+5009089, 2MASX J07093417+5010559, 2MASX J07103411+5007081, 2MASX J07103863+5010377, 2MASX J07104425+5012088, 2MASX J07104502+5004528, 2MASX J07110091+5007039, 2MASX J07110476+5008129, 2MASX J07111080+5010288, 2MASX J07113366+5014543, 2MASXi J0709283+500909, 2MASXi J0709341+501056, 2MASXi J0710342+500708, 2MASXi J0710386+501037, 2MASXi J0710442+501208, 2MASXi J0710450+500452, 2MASXi J0711009+500704, 2MASXi J0711047+500813, 2MASXi J0711108+501028, 87GB 070542.2+501549, 87GB[BWE91] 0705+5015, ABELL 0569:[ZBO89] O2, ABELL 0569:[ZBO89] R2, BZU J0709+5010, CGCG 0705.6+5013, CGCG 0705.7+5015, CGCG 0706.7+5011, CGCG 0706.8+5014, CGCG 0706.9+5009, CGCG 0706.9+5016, CGCG 0707.1+5013, CGCG 0707.2+5015, CGCG 0707.7+5019, CGCG 234-074, CGCG 234-075, CGCG 234-081, CGCG 234-082, CGCG 234-083, CGCG 234-084, CGCG 234-087, CGCG 234-091, CGCG 234-095, CRATES J0709+5010, CRATES J070934.16+501056.2, CXO J071110.8+501029, GALEXASC J070928.34+500907.8 , GALEXASC J070934.18+501055.3 , GALEXASC J071034.14+500707.6 , GALEXASC J071038.65+501037.7 , GALEXASC J071044.37+501209.1 , GALEXASC J071055.87+501052.1 , GALEXASC J071100.88+500703.1 , GALEXASC J071104.69+500812.4 , GALEXASC J071110.89+501030.2 , GALEXASC J071133.77+501454.0 , GALEXMSC J070928.07+500908.4 , GALEXMSC J070934.14+501055.6 , GALEXMSC J071034.10+500707.3 , GALEXMSC J071038.70+501038.1 , GALEXMSC J071044.47+501209.7 , GALEXMSC J071055.91+501051.6 , GALEXMSC J071101.07+500701.5 , GALEXMSC J071104.57+500812.4 , GALEXMSC J071110.78+501028.0 , GALEXMSC J071133.70+501454.9 , GB6 J0709+5010, HDCE 0426 NED009, HDCE 0426 NED010, HDCE 0426 NED011, HDCE 0426 NED012, IC 0457, IC 0458, IC 0459, IC 0460, IC 0461, IC 0462, IC 0463, IC 0464, IC 0465, IC458, IC459, IC460, IC461, IC462, IC463, IC464, IC465, LDCE 0484 NED025, LDCE 0484 NED028, LDCE 0484 NED031, LDCE 0484 NED033, MCG +08-13-078, MCG +08-13-079, MCG +08-13-085, MCG +08-13-088, MCG +08-13-089, MCG +08-13-092, MCG +08-13-096, MCG +08-13-098, NGC 2330, NGC 2332, NGC 2334, NGC 2340, NGC2330, NGC2332, NGC2334, NGC2340, NPM1G +50.0075, NPM1G +50.0077, NPM1G +50.0078, NVSS J070934+501056, NVSS J071035+500712, PCC N03-183:[LLB96] 249, PCC N03-183:[LLB96] 253, PCC N03-183:[LLB96] 257, PCC N03-183:[LLB96] 258, PCC N03-183:[LLB96] 259, PCC N03-183:[LLB96] 265, PGC 020272, PGC 020276, PGC 020306, PGC 020311, PGC 020318, PGC 020319, PGC 020332, PGC 020334, PGC 020338, PGC 020357, UGC 03699, UGC 03699 NOTES01, UGC 03713, UGC 03720, UZC J070934.1+501056, UZC J071034.1+500707, UZC J071038.5+501033, UZC J071044.2+501208, UZC J071104.7+500812, UZC J071110.8+501028, UZC J071133.6+501453, WBL 133-001, WBL 133-002, WBL 133-004, WBL 133-005, WBL 133-006, WBL 133-007, WBL 133-009, WBL 133-010, WBL 133-012, [HRT2007] J070932+501056, [MGD2014] 0705.7+5015, [MGL2009] 0641, [MO2001] J070934.2+501056.2, [MO2001] J071034.2+500707.8,