David's Astronomy Pages CCD Images - Session 690 (2019-09-06)

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Images (S691)

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Session Notes

NGC 4157 - Spiral Galaxy NGC 5473 - Elliptical Galaxy (H I-231)     Variable Stars (photometric monitoring)   - V Sge     Nearby Stars (astrometric monitoring)  - None

- Attempted full night session, but the imaging interval was relatively short (0.8 hours) Session operated in fully automated mode with some  interventions & monitoring - Main aim of the session was to test new version of AstroMain following refactoring of key routine (TakeFrameJobsQSO) and other changes and additions. Conditions relatively poor with wind and long intervals of cloud. Session terminated earlier thn expected due to a limitation of the logic used by Obs.Manager.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  Falling  to 11°C (min). Outdoors 10°C (min) (Dew heaters on manual,  50% & 90%) - CCD Temperature:  -10°C  (61% av. power) - Notes from 2019-09-06 >>

NGC 4157 - Spiral Galaxy

NGC 4157 (Ursa Major) Flat Galaxy Atlas Object Image effected by wind shake / poor seeing

CCD Image (50% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2019-09-06 21:33 UT (#690024-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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NGC 5473 - Elliptical Galaxy (H I-231)

NGC 5473 \ H I-231 (Ursa Major) Image effected by wind shake / poor seeing

CCD Image (50% size, log scale) 6 x 120s exposure (average combine), 3x3 binning, C Filter 2019-09-06 21:45 UT (#690028-33) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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