David's Astronomy Pages Images - Session 627 (2018-09-08)

Images (S626)

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Images (S628)

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Session Notes

37P/Forbes - Comet     Hickson 60 - Galaxy Cluster (PGC 38065 et al) Hickson 81 - Galaxy Cluster (UGC 10319)     NGC 5676 - Spiral Galaxy (Herschel I-189, LGG 384 Member)     Variable Stars (photometric monitoring)     - RX And, U And, DY Per, GK Per, RR Tau     Nearby Stars (astrometric monitoring)   - EV Lac, Groombridge 34, Teegardens Star

- Night Session (7.2 hours duration). Clear dark skies until 02:00 when cloud rolled in from SW ending the session early - Generally Fully Automated operation, but dropping to Manual on occasions ( Session was monitored remotely from indoors to observe operations and spot any new or recurrent issues  ) - Main aim of the session was to test a new routine for taking Sky Flats before an observing session taking images of a selection of variable stars, nearby stars and deep sky targets. - - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding - Ambient Temperature:  6°C (minimum) - CCD Temperature:  -15°C (down to -19°C ) (82% av. power for -15°C, Sky Flats set) (86% av. power for -15°C set) (100% av power for -20°C set  (-18.7° to -19.2°C) - Notes from 2018-09-08 >>

37P/Forbes - Comet

37P/Forbes (passing through star-field in Pisces) Sun Distance 2.02 AU Comet is marked by white cross hairs Bright star is SAO 128092 (magnitude +9.5)

Annotated CCD Image (50% size) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-09-08 22:33 UT (#627002-06) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

37P/Forbes - Detail

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

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

37P/Forbes - Earlier Image (2018-08-31) Sun Distance 1.98 AU

Annotated CCD Image (100% size, cropped) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-08-31 23:09 UT (#623111-15) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Negative CCD Image (100% size, cropped) Image details as above (2018-08-31)

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Hickson 60 - Galaxy Cluster (PGC 38065 et al)

Hickson 60 (Andromeda)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2018-09-09 00:10 UT (#627133-37) 12" LX200R  (at f/10.4) + ST-10XME

Hickson 60 - Detail PGC 38065 - Elliptical Galaxy (catalog mag +15.9), PGC 38053 - Elliptical Galaxy (catalog mag +16.4), PGC 38064 - Spiral Galaxy (catalog mag +16.7), PGC 38072 - Spiral Galaxy (catalog mag +16.7)

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

Negative CCD Image (125% size, square root scale, cropped) Image details as above

Hickson 60 & Adjacent Galaxies Adjacent Galaxies including : PGC 38092 - Elliptical Galaxy (catalog mag +16.1),  PGC 38106 - Elliptical Galaxy (catalog mag +16.4), PGC 2397741 (catalog mag +17.3),  PGC 2399005 (catalog mag +17.5),  PGC 2399094  (catalog mag +17.7), PGC 2399581 (catalog mag +18.3)

Annotated CCD Image (50% size, square root scale) Image details as above

Hickson 60 - Earlier Image (2018-07-26) Attempted imaging of Hickson 60 NB Poor sky conditions

CCD Image (50% size) 3 x 90 sec exposure (average combine), 3x3 binning, C Filter 2018-07-26 01:16 UT (#616155-58) 12" LX200R  (at f/10.4) + ST-10XME

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Hickson 81 - Galaxy Cluster (UGC 10319 et al)

Hickson 81 (Andromeda)  NB. Image suffers from star trailing due to poor/absent guiding Target needs to be rescheduled once guiding issues have been sorted out

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2018-09-09 00:10 UT (#627133-37) 12" LX200R  (at f/10.4) + ST-10XME

Hickson 81 - Detail

Annotated CCD Image (100% size, square root scale, cropped) Image details as above

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NGC 5676 - Spiral Galaxy (Herschel I-189, LGG 384 Member)

NGC 5676 / Herschel I-189 (Bootes)

CCD Image (50% size) 5 x 120 sec exposure (average combine), 3x3 binning, C Filter 2018-09-08 20:46 UT (#627085-89) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5676 - detail

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

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

NGC 5676 - Earlier Image (2018-09-04)

Annotated CCD Image (100% size, cropped) 3 x 120 sec exposure (average combine), 3x3 binning, C Filter 2018-09-04 20:45 UT (#626003-11) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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