C-14, Paramount MEII, SBIG ST-8XME
Different reference stars have been used for this measurement than for the first measurement. The light curve is quite different

C-14, Paramount MEII, SBIG ST-8XME
30 sec exposures, eight comparison stars, high humidity

Celestron SCT 280/2800 Atik 314L+ red. 0,63x
Exposure = 90". Used R filter and slight defocusing.