Object name: NGC4633
Designation(s): NGC4633, NGC4634,
NGC 4633 is a strange disk galaxy possibly interacting with NGC 4634. The pair are located in southern Coma Berenices. Their distance is difficult to determine. By redshift, both are about 28 million light-years distant. Only NGC 4633 has a non-redshift measurement that comes in at 69 million light-years. Quite a difference. If they are interacting then NGC 4634 could also be about 69 million light-years distant. While I can't find an HST image of NGC 4633 there is one for NGC 4634. https://www.spacetelescope.org/images/potw1238a/ The text puts it at "about 70 million light-years". The pair are members of the Virgo Cluster though are on the outskirts of it as most spirals are. Radial velocities of Virgo Cluster members vary drastically with some even blue shifted indicating high orbital velocities are common in the cluster. Thus it isn't unusual that redshift gives erroneous values. Using 69 million light-years I get a size for NGC 4633 of 50,000 light-years and 71,000 for NGC 4634.
Related Designation(s):2MASS J12424093+1417443, 2MASX J12424098+1417451, 2MASXi J1242373+142126, 2MASXi J1242409+141745, 2MFGC 10001, AKARI J1242413+141741, ALFALFA 1-390, CGCG 099-111, CGCG 099-112, CGCG 100-001, CGCG 100-002, CGCG 1240.1+1438, CGCG 1240.2+1434, EVCC 1071, EVCC 1074, FAUST 3393, FAUST V168, GALEXASC J124237.31+142126.4 , GALEXASC J124240.86+141745.5 , HDCE 0720 NED189, HOLM 445A, HOLM 445B, IC 3688, IRAS 12401+1434, IRAS F12400+1438, IRAS F12401+1434, KPG 351A, KPG 351B, LCSB L0532O, LDCE 0904 NED230, MAPS-NGP O_436_0309689, MCG +03-32-085, MCG +03-32-086, NGC 4633, NGC 4634, NGC4633, NGC4634, NSA 142011, NSA 169938, NSA 169939, NVSS J124240+141746, PGC 042699, PGC 042707, SDSS J124237.37+142125.9, SDSS J124240.96+141744.9, SSTSL2 J124237.38+142125.9, UGC 07874, UGC 07875, USGC U490 NED49, USGC U490 NED50, UZC J124236.9+142125, UZC J124241.0+141746, VCC 1929, VCC 1932, [BEC2010] HRS 239,