NGC4781 Galaxy in Virgo
| DATE | 1 Apr 2019 |
| 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, 10 min |
| IMAGE SIZE (ARCMIN) | 26 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC4781 = 71 NGC4784 = 185 |
| MAGNITUDE | NGC4781 = 11.72 NGC4784 = 14.49 |
| POSITION RA-DEC J2000 | NGC4781 = 12:54:23.70 -10:32:14.0 NGC4784 = 12:54:37.00 -10:36:47.0 |
| POSITION ANGLE: | 230 |
| Rotation Velocity km/s | NGC4781 = 104 (max) NGC4784 = na |
| Size (KiloParsecs... kpc) | NGC4781 = 15.36 (RC3 D_0 (blue)) NGC4784 = 27.57 (RC3 D_25; R_25 (blue)) |
| DETAILS | NGC4781 is a barred spiral. NGC4784 is a spiral, edge-on. |
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