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Coordinates 
R.A. = 12:29:06.698, Dec. = +02:03:08.58 (2000)
z = 0.158339

Landessternwarte Heidelberg-Königstuhl

Field of view is 15’x15′

GASP suggested stars: C D E G

Comparison stars

Star U B V R I
C 13.37 (0.03) 12.85 (0.05) 11.87 (0.04) 11.30 (0.04) 10.74 (0.04)
D 13.15 (0.05) 13.17 (0.05) 12.68 (0.04) 12.31 (0.04) 11.99 (0.06)
E 13.39 (0.09) 13.33 (0.07) 12.69 (0.04) 12.27 (0.05) 11.84 (0.04)
G 14.21 (0.07) 14.12 (0.05) 13.56 (0.05) 13.16 (0.05) 12.83 (0.05)

comparison stars from Smith et al., 1985, AJ 90, 1184