David's Astronomy Pages CCD Images - Session 535 (2012-12-26)

Images (S534)

Images Sessions

Home Page

Images (S536)

Objects

Session Notes

BL Lac - Active Extragalactic Object (Blazer)   Variable Stars Photometric Monitoring - Variables - RX And, Z And, TT Ari, CI Cyg, S Cyg, SS Cyg, BL Lac, DY Per , GK Per,    Attempts: U And failed (cloud), RR Tau failed (cloud) Astrometric Monitoring - Nearby Stars - None

- Late Evening session (3.3 hrs duration).  - Session operated under semi-automated control, with remote monitoring from indoors computer.   1 hour break in middle due to cloud cover. - Ambient Temperature: Initially dropping from +2.0 deg C down to -2.5 degC, before rapidly climbing  to 0 degC  - CCD operation -30 degC (at 64% average cooling).   - main objectives of the session were to acquire images of selected project stars for ongoing photometric and astrometric analysis.  Attempts to image 3 comets where unsuccessful due to poor sky transparency. -

BL Lac - Active Extragalactic Object (Blazer)

Back to Top

Variable Stars

Back to Top