David's Astronomy Pages CCD Images - Session 666 (2019-02-21)

Images (S665)

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Images (S667)

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Session Notes

Variable Stars (photometric monitoring)   - TV Cas, RZ LMi, RR Leo, ER UMa     Nearby Stars (astrometric monitoring)  - None

- Post-Midnight Session (2019-02-22 calender date),  Duration 3.9hr Session operated in unattended, fully automated mode, apart from the initial session star-up Sky conditions  poor (bright sky due to moon)  and high cloud. - Main aim of the session was to continue acquiring  light curve data for selected  variables over the course of a few hours with aim of detecting variation associated with eclipsing binary stars , RR Lyr stars and dwarf nova     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  7°C (minimum) - CCD Temperature:  -20°C  / 78% av. power) - Notes from 2019-02-21 >>