1557+351 (MKN 493)
RA: 15 59 09.72 DEC: +35 01 47.5 (J2000)
z=0.031328
The magnitudes without errors (errors are denoted by parentheses) are taken from the USNO-A2.0 survey plates.
| ID | USNO-A2 # |  (deg) |  (deg) | U Mag | B Mag | V Mag | R Mag | I Mag | J Mag | H Mag | K Mag | NOTES |
| obj | 1200-07714051 | 239.790234 | 35.029889 | 12.3 | 10.1 | |||||||
| 1 | 1200-07714318 | 239.803509 | 34.986570 | 14.5 | 13.2 | |||||||
| 2 | 1200-07715114 | 239.842423 | 35.023406 | 16.0 | 13.5 | |||||||
| 3 | 1200-07713880 | 239.782420 | 35.097331 | 13.9 | 12.6 | |||||||
| 4 | 1200-07715437 | 239.857198 | 34.965264 | 15.6 | 13.2 |