The M101 group of galaxies

Probable members of the M101 group of galaxies:

M101
NGC 5474
NGC 5585
NGC 5204
NGC 5238
NGC 5477
UGC 8508
UGC 8837 (Holmberg IV, DDO 185)
UGC 9405

Astronomical data of above galaxies:

Galaxy    Name II   RA (2000.0) Dec type   m_v       dim     RV

NGC 5204  H IV.63   13:29.6 +58:25  Ir    11.3    4.8 x 3.0   351
UGC 8508  1Z 60     13:30.8 +54:55  Ir+   14.5p   1.4 x 0.9   202
NGC 5238  H III.823 13:34.7 +51:37  SBdm  13.3p   2.0 x 1.7   368
UGC 8837  Holm. IV  13:54.8 +53:54  Ir+   13.1p   4.0 x 1.4   284
M101      NGC 5457  14:03.2 +54:21  Sc     7.9   26.9 x 26.3  388
NGC 5474  H I.214   14:05.0 +53:40  Sc    10.8p   4.5 x 4.2   416
NGC 5477  H III.790 14:05.6 +54:28  Ir+   13.8    1.7 x 1.4   441
NGC 5585  H I.235   14:19.8 +56:44  Sa    10.9    5.5 x 3.7   462
UGC 9405

.. more to come soon ..

Hartmut Frommert
Christine Kronberg
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Last Modification: October 9, 2003