David's Astronomy Pages Images - Session 492 (2011-12-23)

Images (S491)

Images Sessions

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Images (S493)

Objects

Session Notes

Gallery Objects   - None     Photometric Monitoring - Variables - Z And, BL Lac, CY Lyr, FG Sge, U Sge, V Sge, WZ Sge, RR Tau - RX And CI Cyg, SS Cyg, DY Per Attempts (failed due to wind) Astrometric Monitoring - Nearby Stars - None

- Evening session (2.7 hrs), windy at start and end of session - Session operated under semi-automated control, with remote monitoring from indoors computer.    - Ambient Temperature: Falling to -0.5°C (minimum) before climbing to +0.5°C - CCD operation -30 degC (at 70% average cooling).   - main objective of the session was to acquire images of selected project stars for ongoing photometric analysis  -