1730-130 (
Coordinates
R.A. = 17:33:02.7, Dec. = -13d04m50 (J2000)
z = 0.902
MAPCAT suggested stars: 3 4 5
Important note:
Both for polarimetry and for photometry, please use MIDAS aperture parametes: 12pix, 0pix, and 3pix when the SITe CCD is used. This is the optimum way we have found to avoid flux from the target's nearby star. Note that these aperture parameters are also adequate to measure stars 3, 4, and 5
Comparison stars
Star
|
B
|
V
|
R
|
1
|
13.71 |
||
2
|
13.44 |
||
3
|
15.24 |
||
4
|
15.19
|
||
5
|
15.23 |
R mags of comparison stars were determined by S. Jorstad (private communication)
R mags of stars 3, 4 and 5 were determined from the R mags of stars 1,and, 2 from data on 3 nights on 2008 and 2009 adquired at the 2.2m Calar Alto Telescope (I. Agudo, 2009, private communication)
Field of view is 7'x7'