| DATE | 27 May 2016 |
| TELESCOPE OPTICS | 508 mm mirror f.4 ccd Kodak KAF8300 3326 x 2504px 5.4 x 5.4µm |
| EXPOSURE | binning 2: composite image, 10.5min |
| IMAGE SIZE (ARCMIN) | 30.1 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC6769 = 161 |
| MAGNITUDE | NGC6769 = 12.55 NGC6771 = 13.58 IC 4842 = 13.43 2MASX J19175739-6039005 = 16.8b 2MASX J19181110-6023504 = 17.9 |
| POSITION RA-DEC J2000 | NGC6769 = 19:18:22.70 -60:30:04.0 NGC6770 = 19:18:37.30 -60:29:47.0 NGC6771 = 19:18:39.50 -60:32:46.0 IC 4842 = 19:19:24.50 -60:38:39.0 2MASX J19175739-6039005 = 19:17:57.40 -60:39:01.0 2MASX J19181110-6023504 = 19:18:11.10 -60:23:50.0 |
| POSITION ANGLE: | 267 |
| Rotation Velocity km/s | NGC6769 = na NGC6770 = 220 max NGC6771 = na IC 4842 = na |
| Size (Light Years) | NGC6769 = 340,000 (ESO-LV "Quick Blue" IIa-O) NGC6770 = 292 (ESO-LV "Quick Blue" IIa-O) NGC6771 = 303,200 (ESO-LV "Quick Blue" IIa-O) IC 4842 = 128,000 (ESO-LV "Quick Blue" IIa-O) |
| DETAILS | Trio of interacting galaxies, NGC6770 appears to be a barred spiral and both this and NGC6769 have developed star forming regions as a result of the interaction. NGC6769 contained supernovae SN 2006ox and SN 1997de. IC4842 is classed as an elliptical galaxy and NGC6771 is and edge-on barred spiral. |
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