DescriptionImages

Object name: WBL409

Designation(s): WBL409, NGC4431, NGC4436, NGC4440, IC3349,

WBL 409 is a group of three galaxies about 58 million light-years distant in Virgo not far from its major Virgo Cluster galaxies like M84, M86 and M87. These three are red and dead galaxies with little detail to be seen in them, not even the spiral NGC 4440 has any fine detail being mostly a fuzzy red spiral galaxy. IC 3349 is also likely a member of the group though its redshift puts it 80 million light-years out a non-redshift measurement puts it 61 million light-years. The redshift of Virgo cluster members is very wide-ranging and undependable as a distance measure. The three NGC galaxies were discovered by William Herschel on April 17, 1784. For some reason, NGC 4436 is classified as a dwarf elliptical or dwarf S0 galaxy even though it isn't all the much smaller than the other two. Assuming the 58 million light-year distance I measure NGC 4431 at 30,000 light-years, NGC 4436 at 29,000 light-years and NGC 4440 as being 44,000 light-years across None are in either H400 observing program. IC 3349 was discovered over 120 years later by Royal Frost on May 10, 1904. Assuming it too is about 58 million light-years distant I measure it at 16,600 light-years in size. It does deserve its dwarf label.

NGC 4431, NGC 4436 and NGC 4440 were discovered by William Herschel on April 17, 1784. They aren't in either H400 program.
IC 3349 was discovered by Royal Frost on May 10, 1904.

ASK 386242 in the eastern side of the image is interesting looking. I wish we weren't nearly 2 billion light-years from it as it has a huge drawn out arm or plume. I measure it, including the plume at nearly 150,000 light-years in size. Something has really happened to this galaxy. I found nothing on it, unfortunately.

The field contains several extremely low surface brightness dwarf galaxies. I labeled them even though I found no distance data for them. The one north of NGC 4440 is very faint and hard to see. The easiest being in the upper right corner.

Speaking of faint there are 4 asteroids in the image, three are also very faint and difficult to find. The brightest is not much brighter but I was surprised to find that it is not in the Minor Planet Center's database. This is yet another case of my not looking at an image until long after it was taken. If I had looked at it that day or the next I could have sent in the position for others to track or I could skies permitting. Now, weeks later, it is too late and it is again lost. I don't know how the constant surveys missed this one. Maybe they didn't and somehow it just didn't get in the database. In any case, I marked it as "Unknown". The three known ones are all magnitude 20.1 or fainter by the MPC's estimate. The unknown one is somewhat brighter.

Transparency wasn't all that great this night so I didn't pick up the faint dwarf galaxies as well as I'd hoped or expected to on a good night. This will have to do. I'll leave that to others.

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

Related Designation(s):

2MASS J12272738+1217248, 2MASS J12274122+1218572, 2MASS J12275354+1217358, 2MASX J12264704+1227147, 2MASX J12272735+1217252, 2MASX J12274122+1218574, 2MASX J12275357+1217354, 2MASXi J1227268+121725, 2MASXi J1227535+121735, AGC 220591, ASK 385509.0, ASK 386246.0, CGCG 070-081, CGCG 070-094, CGCG 070-096, CGCG 070-099, CGCG 1224.2+1244, CGCG 1224.9+1234, CGCG 1225.2+1235, CGCG 1225.4+1234, EVCC 0622, EVCC 0670, EVCC 2112, EVCC 2121, GALEXASC J122647.15+122718.0 , GALEXASC J122741.38+121856.7 , GALEXASC J122753.48+121735.7 , GALEXMSC J122647.01+122716.1 , GALEXMSC J122727.41+121722.2 , GALEXMSC J122741.19+121857.4 , GALEXMSC J122753.48+121734.8 , HDCE 0720 NED098, HDCE 0720 NED101, HDCE 0720 NED103, HOLM 408A, HOLM 408B, HOLM 408C, IC 3349, IC3349, LCSB F0034O, LCSB L0515O, LDCE 0904 NED122, LDCE 0904 NED125, LDCE 0904 NED127, LGG 289:[G93] 010, LGG 289:[G93] 075, LGG 292:[G93] 006, LGG 292:[G93] 007, MAPS-NGP O_496_0054940, MAPS-NGP O_496_0063604, MAPS-NGP O_496_0063678, MAPS-NGP O_496_0063741, MCG +02-32-062, MCG +02-32-066, MCG +02-32-067, NGC 4431, NGC 4436, NGC 4440, NGC4431, NGC4436, NGC4440, NSA 066624, NSA 066749, NSA 141405, NSA 161820, PGC 040744, PGC 040852, PGC 040903, PGC 040927, RSCG 56:[WBJ2013] A, RSCG 56:[WBJ2013] B, RSCG 56:[WBJ2013] C, RSCG 56:[WBJ2013] D, SDSS J122647.06+122714.3, SDSS J122647.07+122714.3, SDSS J122727.37+121725.0, SDSS J122727.38+121725.0, SDSS J122741.23+121857.2, SDSS J122741.24+121857.2, SDSS J122753.56+121735.8, UGC 07569, UGC 07573, UGC 07581, USGC U490 NED208, USGC U490 NED210, USGC U490 NED214, USGC U490 NED231, UZC J122647.1+122714, UZC J122727.4+121725, UZC J122741.3+121857, UZC J122753.6+121736, v2MCG 50:[DMP2012] 1, v2MCG 50:[DMP2012] 2, v2MCG 50:[DMP2012] 3, VCC 0940, VCC 1010, VCC 1036, VCC 1047, VPC 0496, VPC 0532, VPC 0544, VPC 0560, WBL 409, WBL 409-001, WBL 409-002, WBL 409-003, WBL409, [BEC2010] HRS 164, [M98j] 174 NED107, [M98j] 174 NED110, [R83] 12deg043, [RG2008] J186.69610+12.45398 , [RG2008] J186.86409+12.29029 , [RG2008] J186.92183+12.31590 , [RG2008] J186.97320+12.29328 ,