David's Astronomy Pages Images - Session 614 (2018-07-22)

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Session Notes

EV Lac - Nearby Star (GJ 873) GK Per - Variable Star Groombridge 34 - Nearby Double Star - 11.7 ly     NGC 7094 - Planetary Nebula     Photometric Monitoring - Variables    - None   (GK Per attempt failed due to centering issue)     Astrometric Monitoring - Nearby Stars     - EV Lac, Groombridge 34

- Night Session (1.7 hrs duration). Clear summer twilight skies, low wind - Session conducted as a Fully Automated Run, in which the Observatory Control Program opened the  Observatory, built and executed an optimised Observing Plan before finally closing the Observatory at the end of the night (Session was monitored from both in the observatory and remotely to check that things were proceeding ok and intervene if necessary) - Main aim of the session was to test the Clair 3 Observatory running in Fully Automated Mode.  Secondary aim was to acquire images of a selection of targets. - 12" LX200 + ST-10XME for imaging - Ambient Temperature:  14°C (minimum) - Notes from 2018-07-22 >>

EV Lac - Nearby Star (GJ 873) 

EV Lac / GJ 873 (Lacerta) image affected by poor focusing

CCD Image (50% size) 7 x 10 sec exposure (average combine), 3x3 binning, V Filter 2018-07-23 00:05 UT (#614053-59) 12" LX200R  (at f/10.4) + ST-10XME

EV Lac - Earlier Baseline Image (2008)

Annotated CCD Image 3 x 30 sec exposure (average combine), 2x2 binning, C Filter 2008-06-09 00:22 UT (#290078-82) 8" LX200 + ST-7E

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GK Per - Variable Star 

Attempted VR photometry imaging of GK Per,  however the N/W offsets held in the Targets Database where not correctly imported with the Observing Plan

GK Per (Perseus)

CCD Image (50% size) 5 sec exposure (single exposure), 3x3 binning, V Filter 2018-07-23 00:32 UT (#614002) 12" LX200R  (at f/10.4) + ST-10XME

GK - Earlier Reference Image (2008)

Annotated CCD Image 3 x 30s exposure (average combine), 2x2 binning, V filter  2008-09-28 20:44h UT (#307056-60) 8" LX200 + ST-7E

Annotated CCD Image  3 x 30s exposure (average combine), 2x2 binning, C filter  2008-09-27 21:41h UT (#306152-58) 8" LX200 + ST-7E

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Groombridge 34 - Nearby Double Star - 11.7 ly

Groombridge 34 (Andromeda)

CCD Image (50% size) 5 sec exposure (single frame), 3x3 binning, C Filter 2018-07-23 01:43 UT (#614017) 12" LX200R  (at f/10.4) + ST-10XME

Groombridge 34 - detail A - GX And (HD 1326),  B - GQ And Motion of the two stars (2006 to 2018) is very clear

CCD Image (100% size, cropped) Image details as above

Groombridge 34 - Earlier Image (2006)

Annotated CCD Image (50% size) 7 x 20s (average combine), 1x1 binning, C filter 2006-07-24 00:09h UT (#131156-62) 8" LX200 + ST-7E

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NGC 7094 - Planetary Nebula

Deep Sky Challenge object in Sep 2017 edition of Astronomy Now magazine

NGC 7094 (Pegasus) Nebula is present but very faint, marked by white cross-hairs

CCD Image (50% size) 4 x 90s exposure (average combine), 3x3 binning, C Filter 2017-11-02 19:07h UT (#614011-15) 12" LX200R  (at f/10.4) + ST-10XME

NGC 7094 - detail

CCD Image (100% size, cropped) Adjusted Black-White Range Image details as above

Negative CCD Image (100% size, cropped) Adjusted Black-White Range Image details as above

NGC 7094 - earlier image attempt (2017)

CCD Image (100% size, cropped, gaussian blur) 4 x 30s exposure (average combine), 3x3 binning, C Filter 2017-11-02 19:07h UT (#603045-54) 12" LX200R  (at f/10.4) + ST-10XME

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