3C 371 (UGC 11130, S4 1807+69, 4C 69.24, TXS 1807+698)

Coordinates (J2000)
R.A.: 18 06 50.7  ,   Dec.: +69 49 28
z = 0.051

Field of view is 15’x15′

GASP suggested stars: C1 C2

Comparison stars

Star	V	R	I
C1	14.26 (0.06)	13.78 (0.06)	13.42 (0.06)
C2	16.31 (0.10)	15.95 (0.10)	15.60 (0.10)

From http://astro.fisica.unipg.it/PGblazar/3C371.html

IMPORTANT: we recommend to use 7.5 arcsec for the aperture radius, which allows us to optimize the subtraction of the host galaxy contribution in the following data analysis.