David's Astronomy Pages Images - Session 625 (2018-09-03)

Images (S624)

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Images (S626)

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Session Notes

Hickson 74 - Galaxy Cluster (NGC 5910 et al)     NGC 7008 - Planetary Nebula     Variable Stars (photometric monitoring)     - U And, Z And, S Cyg, SS Cyg, BL Lac, V Sge     Nearby Stars (astrometric monitoring)   - Ross 248 (HH And), Groombridge 34, EV Lac

- Night Session (4.8 hours duration). Cloud interrupted the session on several occasions through the night - Fully Automated operation  (First part of the Session was monitored remotely from indoors to observe operations and spot any new or recurrent issues before retiring to bed whilst the session continued unattended until dawn.  No images were taken after 02:43 the job queue froze whilst attempting a slew with the 'Wrong Tracking State'.) - Main aim of the session was to acquire images of a selection of variable stars, nearby stars and deep sky targets. Secondary aims were to test recent software fixes & modifications of the Observatory Control Program (CCDApp2). - - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding - Ambient Temperature:  Initially 11°C, gradually dropping to  7°C (minimum) - CCD Temperature:  -15°C (87% av. power) - Notes from 2018-09-03 >>

Hickson 74 - Galaxy Cluster (NGC 5910 et al)

Hickson 74 (Serpens) a) NGC 5910 (catalog mag +13.6)  b)  PGC 54688 (catalog mag +15.7) 3 other members of the group are not visible or not certain [ Hickson Galaxy Groups ]

CCD Image (100% size, cropped) 3 x 180 sec exposure (average combine), 3x3 binning, C Filter 2018-09-02 21:15 UT (#625015-17) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

[ See Later Image 2022-01-25 (S959) ]

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NGC 7008 - Planetary Nebula

NGC 7008 / H I 192 (Cygnus) Hidden Treasures catalog object 103  [ Planetary Nebula ] [ Herschel 400 Objects ] [ Hidden Treasures ]

CCD Image (50% size) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-09-03 23:50 UT (#625037-41) 12" LX200R  (at f/10.4) + ST-10XME

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

NGC 7008 -  Detail

CCD Image (218% size, cropped) Image details as above

NGC 7008 - Earlier Detail - 2018-08-08

CCD Image (218% size, cropped) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-08-08 00:56 UT (#617003-07) 12" LX200R  (at f/10.4) + ST-10XME

NGC 7008 - Earlier Image (2006)

CCD Image 120 sec exposure (single frame), 2x2 binning , C Filter 2006-09-04 22:03 h UT (#138063) 8" LX200 + ST-7E

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