NGC1684 Galaxy in Orion
| DATE | 8 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 2: composite image, 7 min | |
| IMAGE SIZE (ARCMIN) | 25 | |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC1682 = 193 NGC1683 = 173 NGC1684 = 194 NGC1685 = 200 |
MCG -01-13-033 = 202 2MASX J04515433-0304455 = 244 2MASX J04520428-0256269 = 184 2MASX J04524451-0312571 = 207 |
| MAGNITUDE | NGC1682 = 14.4b NGC1683 = 15.98 NGC1684 = 12.9b NGC1685 = 14.4b |
MCG -01-13-033 = 14.6b 2MASX J04515433-0304455 = 14.7i 2MASX J04520428-0256269 = 15.6b 2MASX J04524451-0312571 = 16.0b |
| POSITION RA-DEC J2000 | NGC1682 = 04:52:19.80 -03:06:21.0 NGC1683 = 04:52:17.60 -03:01:29.0 NGC1684 = 04:52:31.10 -03:06:22.0 NGC1685 = 04:52:34.20 -02:56:58.0 |
MCG -01-13-033 = 04:53:17.40 -03:00:36.0 2MASX J04515433-0304455 = 04:51:54.30 -03:04:46.0 2MASX J04520428-0256269 = 04:52:04.30 -02:56:27.0 2MASX J04524451-0312571 = 04:52:44.50 -03:12:57.0 |
| POSITION ANGLE: | ||
| Rotation Velocity km/s | na | |
| Size (Light Years) | NGC1682 = 17,000 (POSS1 103a-O) NGC1683 = na NGC1684 = 160,000 (RC3 D_25; R_25 (blue)) NGC1685 = 73,000 (RC3 D_25; R_25 (blue)) |
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| DETAILS | NGC1684 is an elliptical galaxy. NGC1682 is a spiral, NGC1683 is a spiral. NGC1685 is a barred spiral with Seyfer2 type activity. SN 2009ic occurred in the MCG -01-13-033 region. |
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