NGC2207 and IC2163 Galaxies in Canis Major
| DATE | 1 Dec 2013 |
| TELESCOPE OPTICS | 508 mm mirror f.4 . effective f4.6 with paracorr2. ccd Kodak KAF8300 3326 x 2504px 5.4 x 5.4µm |
| EXPOSURE | binning 1: composite image, 8 min |
| IMAGE SIZE (ARCMIN) | 25 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC2207 = 127 IC 2163 = 128 |
| MAGNITUDE | NGC2207 = 12.2 IC 2163 = 11.6 |
| POSITION RA-DEC J2000 | NGC2207 = 06:16:22.00 -21:22:22.0 IC 2163 = 06:16:28.01 -21:22:33.1 |
| POSITION ANGLE: | 141 |
| Rotation Velocity km/s | NGC2207 = 160 IC 2163 = 140 |
| Size (Light Years) | NGC2207 = 156,000 (ESO-LV "Quick Blue" IIa-O) IC 2163 = 117,000 (ESO-LV "Quick Blue" IIa-O) |
| DETAILS | NGC2207 and IC 2163 are interacting spiral galaxies that appear to have opposite chirality with respect to their rotational characteristics. It is thought that a ring is forming around NGC2207, due to the interaction as it consumes IC 2163. This may be due to the gravitational interaction of the central mass of IC 2163 acting on the outer spiral arms of NGC2207. Supernovae have occurred in this region SN 1975A, SN 1999ec, SN 2003H, SN 2010jp and SN 2013ai. Both galaxies are barred spirals and NGC2207 has a weak bar. |
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