PKS 0735+178

(OI 158, DA 237, 1ES 0735+178, RGB J0738+177, 3EG J0737+1721)

Coordinates
= 07 38 07.39 = +17 42 18.99 (2000)
z > 0.424


Field of view is 15'x15'

Johnson-Cousins photometry of comparison stars

star R.A. Dec. V Rc Ic
(J2000.0) (J2000.0) [mag] [mag] [mag]
C1 07 38 00.5 +17 41 19.9 13.26 ± 0.04  12.89 ± 0.04  12.57 ± 0.04
C 07 38 02.4 +17 41 22.2  14.45 ± 0.04 13.85 ± 0.04  13.32 ± 0.04
D 07 38 08.3 +17 44 59.7 15.90 ± 0.05  15.49 ± 0.05 15.12 ± 0.06
C2 07 38 08.5  +17 40 29.2 13.31 ± 0.04 12.79 ± 0.04 12.32 ± 0.04
C4 07 38 11.6 +17 40 04.4 14.17 ± 0.05  13.80 ± 0.04  13.48 ± 0.04
C7 07 38 20.7  +17 40 51.2  15.01 ± 0.06 14.70 ± 0.06  14.37 ± 0.05
A 07 38 23.4 +17 42 43.0 13.40 ± 0.05 13.10 ± 0.05  12.82 ± 0.05

Photometric calibrations above made by Perugia Astronomical Observatory:
(Ciprini S., Takalo L. O., Tosti G., Raiteri C. M., Fiorucci M., Villata M., Nucciarelli G., Lanteri L., Nilsson K., & Ros J. A., 2005, A&A, submitted)

Previous UBVRI calibrations for stars A,C,D made by:
Smith, P.S., Balonek, T.J., Heckert, P.A., Elston, R., & Schmidt, G.D., 1985, AJ, 90, 1184

Previous calibrations data 

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M.Hauser@lsw.uni-heidelberg.de