Arlo Landolt has measured precise magnitudes for several stars in the field of WZ Sge. Arne Henden reported them to VSNET on Aug 31, 2001, and I show them graphically below.
Sep 17, 2001: This information has now been published by Henden and Landolt, in IBVS volume 5166. To see the paper, go to http://www.konkoly.hu/IBVS/issues.html and type in "5166", followed by "Get it!"
The image above has a size of about 17 arcminutes high by 12 arcminutes wide.
Here is a comparison of Landolt's photometry with that of Arne, and that of Krzeminski and Kraft, 1964, ApJ 140, 921 (referred to as "K and K").
ID RA (J2000) DEC V B-V U-B V-R R-I source spec.
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A 302.006040 17.669979 9.681 1.017 0.825 0.519 0.495 Henden K0
20:08:01.4 17:40:12 9.686 1.012 +0.780 +0.531 +0.488 Landolt
= GSC 1621-0989 9.72 1.03 0.76 K and K
= HD 351517
B 302.022582 17.617128 11.773 0.415 0.167 0.211 0.205 Henden
20:08:05.4 17:37:02 11.770 +0.393 +0.207 +0.215 +0.210 Landolt
= GSC 1622-1112 11.84 0.39 0.22 K and K
C 301.890602 17.666824 8.728 0.160 0.107 0.065 0.061 Henden A2
20:07:33.7 17:40:01 8.737 +0.168 +0.136 +0.075 +0.078 Landolt
= GSC 1622-1830 8.76 0.16 0.13 K and K
= HD 191083
CS 301.889824 17.654468 11.769 0.184 0.120 0.073 0.078 Henden F2
20:07:33.5 17:39:16 11.755 +0.192 +0.150 +0.088 +0.113 Landolt
= GSC 1621-1758
Arne Henden has calibrated many, many fainter stars in this field as well. You can find his photometry at
or a local copy right here:Bjorn Granslo has created an extended sequence of stars within a few arcminutes of WZ Sge, with magnitudes running from V=8.7 to V=15.4.