1101+384 ( MRK 421)

Coordinates
R.A. = 11:04:27.3139 , Dec. = + 38:12:31.799 (2000)
z = 0.030021



MAPCAT suggested stars: 1 2 3

GASP suggested stars: 1 2 3

Important note:

Both for polarimetry and for photometry, please use MIDAS aperture parametes: 14pix, 0pix, and 5pix when the SITe CCD is used. This is the optimum way we have found to avoid flux from the target's nearby galaxy

Comparison stars

Star

B

V

R

1

15.02 (0.03)

14.36 (0.02)

14.04 (0.02)

2

16.20 (0.04)

15.57 (0.05)

15.20 (0.03)

3

16.69 (0.03)

15.77 (0.03)

15.24 (0.03)

from Villata et al. 1998, A&AS, 130, 305

Field of view is 10'x10'