Object name: IC4304

Designation(s): IC4304, IC4300, IC4301, IC4302, IC4305, IC4306,

This field in southeastern Canes Venatici contains a large group of galaxies at a distance of about 350 million light-years. 6 of them are bright enough to have made the IC catalog. They are all quite red with the sixth IC imposter that redshift puts nearly 70 percent more distant. I'd have expected this group to have a designation but I couldn't find one. Three of them (ICs 4304, 4305 and 4306) form the WBL 457 group. Others, mostly fainter than the IC galaxies are lumped into other three and four galaxy groups but nothing I find encompasses the entire group. I find that odd. In any case, the IC galaxies are (starting in the center and working out), IC 4304, 4305, 4306, 4302, 4301 with IC 4300 being the outcast. There's another bright member of the group, UGC 08609 in the northeast corner that's a nice face on blue spiral finally adding a color other than red to the image. It appears there's been no work done on this group so I can't report further. Odd how such a nice group has been ignored like this. How far outside my frame the group continues I didn't look up.

All but one galaxy in the field are either members of this group at about 350 million light-years or more distant but for one exception. That is LEDA 214123, a blue S01 galaxy at 220 million light-years though it is smaller than most of the true members. Still being blue it adds some much needed color contrast.

One of the smallest members of the group is ASK 533588.0 on the western side of the frame. It has two companions that appear to be in its halo. They are likely far more distant galaxies in the same line of sight but without redshift data on them I can't say for certain they aren't colliding with the known member or with each other.

There are several distant galaxy clusters in the image. Some had an anchoring bright cluster galaxy others had none. If there was such a bright cluster galaxy it is noted in the annotated image. Often these have a spectroscopic redshift that's more accurate than the photographic one use for the cluster but in this case, all were photographic and identical to that of the cluster so aren't listed twice.

The IC galaxies were all discovered by Stephane Javelle. IC 4300 was not seen until June 16, 1903. The others were all seen on July 1, 1896.

As usual with my annotated images distances are in billions of light years and spectroscopically determined unless noted differently (p for photographic, Est for estimated etc.) Distances found by non-spectral means, often Tully Fisher, are the median of as many as NED has listed and are shown in parentheses.

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

Related Designation(s):

2MASS J13352520+3325114, 2MASS J13353586+3322288, 2MASS J13353591+3328475, 2MASS J13353598+3328463, 2MASS J13355789+3325480, 2MASS J13355837+3328260, 2MASS J13361964+3325245, 2MASX J13352519+3325116, 2MASX J13353581+3322286, 2MASX J13353598+3328466, 2MASX J13355786+3325477, 2MASX J13355834+3328257, 2MASX J13361966+3325247, 2MFGC 10953, 2MFGC 10954, AGC 231140, ASK 504371.0, ASK 533590.0, ASK 533591.0, ASK 533594.0, ASK 533597.0, CGCG 1333.7+3341, CGCG 1333.7+3344, CGCG 1334.0+3340, CGCG 190-032, CGCG 190-033, CGCG 190-035, ECO 04194, FGC 1641, GALEXASC J133535.97+332226.6 , GALEXASC J133558.00+332550.2 , GALEXASC J133558.40+332827.4 , GALEXASC J133619.77+332525.1 , HDCE 0806 NED010, HDCE 0806 NED011, HDCE 0806 NED012, IC 4300, IC 4301, IC 4302, IC 4304, IC 4305, IC 4306, IC4300, IC4301, IC4302, IC4304, IC4305, IC4306, LDCE 0983 NED021, LDCE 0983 NED022, LDCE 0983 NED023, MAPS-NGP O_270_1279542, MAPS-NGP O_270_1279693, MAPS-NGP O_270_1280048, MAPS-NGP O_270_1280394, MAPS-NGP O_270_1324473, MCG +06-30-048, MCG +06-30-051, MCG +06-30-054, MCG +06-30-055, MCG +06-30-058, NGP9 F270-1279759, NGP9 F270-1279910, NGP9 F270-1280611, NGP9 F270-1324690, NRGb 251.032, NRGb 251.034, NRGb 251.037, NSA 087667, NSA 093473, NSA 093474, NSA 093477, NSA 093479, NSA 163739, PGC 047912, PGC 047935, PGC 047980, PGC 047981, PGC 048015, RFGC 2606, SDSS J133525.19+332511.3, SDSS J133525.20+332511.3, SDSS J133535.80+332228.1, SDSS J133535.94+332846.4, SDSS J133535.94+332846.5, SDSS J133535.95+332846.5, SDSS J133557.87+332548.0, SDSS J133557.88+332548.0, SDSS J133557.88+332548.1, SDSS J133558.37+332826.0, SDSS J133558.37+332826.1, SDSS J133619.63+332524.3, SDSS J133619.64+332524.4, SDSS-g-eon-0633, SDSS-i-eon-0661, SDSS-r-eon-0655, UGC 08580, UGC 08586, UZC J133557.9+332548, UZC J133558.4+332826, WBL 457-001, WBL 457-002, WBL 457-003, [DZ2015] 738-01, [DZ2015] 738-02, [DZ2015] 738-03, [DZ2015] 738-04, [SMB88] 0941, [SMB88] 0950, [SMB88] 0951, [SMB88] 0971, [SMB88] 0972, [SMB88] 0984, [TTL2012] 146302, [TTL2012] 146303, [TTL2012] 146306, [TTL2012] 146309, [TTL2012] 490371,