NGC991 Galaxy in Cetus
| DATE | 29 Oct 2014 |
| TELESCOPE OPTICS | 508 mm mirror f.4 ccd
Kodak KAF8300
3326 x 2504px 5.4 x 5.4µm |
| EXPOSURE | binning 1: composite image, 12 min |
| IMAGE SIZE (ARCMIN) | 29 |
| LIGHT TRAVEL TIME (Derived Redshift. Millions Light Years) | NGC991 = 58 SDSS J023524.10-070952.2 = 8,777 (z = 1.386986) SDSS J023530.71-070504.5 = 10,113 (z = 2.05975) SDSS J023517.47-070624.9 = 10,579 (z = 2.395) |
| MAGNITUDE | NGC991 = 13.5g SDSS J023524.10-070952.2 = 19.9g SDSS J023530.71-070504.5 = 20.3g SDSS J023517.47-070624.9 = 20.0g |
| POSITION RA-DEC J2000 | NGC991 = 02:35:32.70 -07:09:16.0 SDSS J023524.10-070952.2 = 02:35:24.10 -07:09:52.0 SDSS J023530.71-070504.5 = 02:35:30.70 -07:05:05.0 SDSS J023517.47-070624.9 = 02:35:17.50 -07:06:25.0 |
| POSITION ANGLE: | 216 |
| Rotation Velocity km/s | NGC991 = ~50 |
| Size (Light Years) | NGC991 = 50,000 (POSS1 103a-O) SDSS J023517.47-070624.9 = 175,000 (r (SDSS Isophotal)) |
| DETAILS | NGC991 is a weakly barred spiral and seems to have a large number of satellite galaxies in it's vicinity. Supernova SN 1984L occurred here., SDSS J023530.71-070504.5 and SDSS J023524.10-070952.2 are QSOs. SDSS J023517.47-070624.9 on the other hand is an Xray source that has a size of 175,000 light years as measured by (r (SDSS Isophotal)) and a magnitude of 20.0g. |
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