GK Persei

Basic Data
Type dwaf-nova
Period (d) 1.996803 d + ?
Mag 11.5 -?
a(2000) 03h31m12.0s
d(2000) +43d54m17s

C1 = GSC 0287400934
C2 = GSC 0287401053

March 8/9, 2002. Very cold (T = -30 C), good conditions. Low scatter despite poor position low in W (C2-C1 = 0.01 mag).

DFT for the 5 h run shown on right.
March 9/10, 2002. Cold, fair conditions but cloud at approx 5h UT forced early termination.
March 17/18. Cold (T=-25C) with high, scattered cloud. Fair conditions, scatter (C2-C1)=0.014 mag.
March 18/19, 2002. Clear and cold (T=-27C). GK is low in west and over Edmonton - lots of background. Despite this a very good light curve. Typical scatter (C2-C1) = 0.014 mag.
March 19/20, 2002. Clear and cold (T=-29C). Good conditions. Typical scatter (C2-C1) = 0.014 mag.
March 20/21, 2002. Clear and cold (T=-27C). Good conditions. Typical scatter (C2-C1) = 0.015 mag.
March 21/22, 2002. Clear and cold - good conditions. Typical scatter < 0.013 mag.
DFT in the 200 c/d - 300 c/d region for the entire data set. The 351 s signal is clearly present.
March 22/23, 2002. Clear, some cloud. Fair - good conditions. Scatter approx 0.016 mag.
March 25/26. Clear, cool, good conditions. Scatter approx 0.013 mag.