Source
Epoch
Contour
PostScript
Colour
PostScript
Colour
GIF
0850+581
QSO
z
= 1.322
V
= 18.
Notes (from the published papers):
12/1995
10/1996
12/2000
06/2002
PS
PS
PS
PS
PS
PS
PS
PS
GIF
GIF
GIF
GIF
ros@mpifr-bonn.mpg.de