1ES1426+428
DSS image: 15 x 15 arcmin
R.A. (J2000.0)= 14 28 32.6
Dec. (J2000.0)= +42 40 21
Recommended standard stars
| Star | B | Err B | V | Err V | R | Err R | I | Err I |
|---|---|---|---|---|---|---|---|---|
| 1 | 15.63 | 0.03 | 14.13 | 0.01 | 13.23 | 0.02 | 12.43 | 0.02 |
| 2 | 15.47 | 0.02 | 14.61 | 0.01 | 14.17 | 0.02 | 13.79 | 0.02 |
| 3 | 14.22 | 0.02 | 13.46 | 0.01 | 13.00 | 0.02 | 12.62 | 0.03 |
| 4 | 16.14 | 0.06 | 15.53 | 0.04 | 15.20 | 0.04 | 14.82 | 0.05 |
comparison stars from Smith P.S., Jannuzi B.T., Elston R., 1991, ApJS 77, 67S