1

1219+285 (ON 231, W Com)

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Coordinates 
R.A. = 12:21:31.6905, Dec. = +28:13:58.500 (2000)
z = 0.10200

Landessternwarte Heidelberg-Königstuhl

Field of view is 10’x10′

GASP suggested stars: A C1 D

Comparison stars

Star B V R I
A 12.64 (0.03) 12.08 (0.04) 11.72 (0.04) 11.40 (0.04)
C1 17.71 (0.05) 16.60 (0.12) 16.03 (0.10) 15.50 (0.11)
D 16.37 (0.05) 14.81 (0.04) 13.86 (0.04) 12.68 (0.04)

comparison stars from Fiorucci M., Tosti G., 1996, A&AS 116, 403 
B-data from Tosti G. et al., 1998, A&AS 130, 109