(2251+158)
Equat. coord. (J2000.0): R.A.: 22h 53m
57.7s Dec.: +16° 08' 54''
z = 0.859
MAPCAT suggested stars: 5 6 7 8
Important note:
Both for polarimetry and for photometry, please use MIDAS aperture parametes: 11pix, 0pix, and 2pix when the SITe CCD is used. This is the optimum way we have found to avoid flux from the target's nearby star.
Optical photometry
of comparison stars
|
Star \ Band |
U |
B |
V |
R |
I |
|
1 |
15.17 (~0.02) |
14.70 (0.02) |
13.71 (0.02) |
13.15 (0.02)
|
12.545 (0.006) |
|
2 |
15.94 (~0.02) |
14.93 (0.02) |
13.80 (0.02) |
13.19 (0.02)
|
12.633 (0.005) |
|
3 |
15.42 (~0.02) |
15.19 (0.02) |
14.44 (0.02) |
14.00 (0.02)
|
13.528 (0.004) |
|
4 |
15.94 (~0.02) |
15.91 (0.05) |
15.21 (0.02) |
14.79 (0.02)
|
14.300 (0.007) |
|
5 |
16.71 (~0.08) |
16.28 (0.05) |
15.30 (0.02) |
14.83 (0.02)
|
14.334 (0.025) |
|
6 |
16.35 (~0.11) |
16.06 (0.05) |
15.34 (0.02) |
14.83 (0.03)
|
14.424 (0.017) |
|
7 |
18.94 (~0.14) |
17.00 (0.03) |
15.74 (0.02) |
14.94 (0.02)
|
14.204 (0.007) |
|
8 |
17.39 (~0.05) |
16.85 (0.06) |
15.94 (0.02) |
15.34 (0.02)
|
14.754 (0.020) |
References
Raiteri et al. 1998, A&AS 130,
495 (adopted in BVR)
González-Pérez et al. 2001, AJ 122, 2055 (adopted in I)
Angione 1971, AJ 76, 412 (adopted in U)