David's Astronomy Pages CCD Images - Session 826 (2020-11-03)

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Session Notes

C/2019 K7 (Smith) - Comet C/2019 U6 (Lemmon) - Comet (attempted sighting)     NGC 2232 - Open Cluster (H VIII-25) NGC 3243 - Spiral Galaxy NGC 3643 - Spiral Galaxy (SN 2020hvf follow-up) NGC 7656 - Spiral Galaxy     Variable Stars (photometric monitoring) - RX And, U And, Z And, TT Ari, S Cyg, SS Cyg, AM Her, BL Lac, CY Lyr, CN Ori, FO Ori, NV Ori, DY Per     Nearby Stars (astrometric monitoring) - HH And, Barnards Star, DX Cnc, Groombridge 34, - CN Leo attempt failed (due to cloud)

- All night session (11 hours) - Main aims of the session were acquisition of a selection of deep sky targets, together with some variable star, nearby star and comet targets (if conditions allowed) - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 9°C (min) climbing later as clouds rolled in - CCD Temperature:  -15°C - Notes from 2020-11-03 >>      -

C/2019 K7 (Smith) - Comet

C/2019 K7 (Smith) (passing through Hercules) Sun Distance 4.62 AU (receeding) Earth Distance 4.93 AU (736.9 million km)		C/2019 K7 (Smith) - 2020-11-03, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's (slow) rate of motion (Ra 8.13 arcsec/hr, Dec 0.72 arcsec/hr)
Annotated CCD Image (50% size, linear scale) 6 x 60s exposure (average combine), 3x3 binning, C Filter 2020-11-03 18:53 UT (#826042-48) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (125% size, linear scale, cropped) Image details as left
Composite Image showing slow movement of C/2019 K7 (Smith) over interval of 4 days
Annotated Composite CCD Image (50% size, linear scale) 6 x 60s exposure (average combine), 3x3 binning, C Filter Left hand side : 2020-11-03 18:53 UT (#826042-48) Right hand side: 2020-10-30 19:48 UT (#825068-74) 12" LX200R (at f/10.4) + ST-10XME
Images of C/2019 K7 (Smith) on Comets 2020 Page >>

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C/2019 U6 (Lemmon) - Comet (Attempted Sighting)

C/2019 U6 (Lemmon) (passing through Hercules) Sun Distance 2.36 AU Earth Distance 2.71 AU (405.9 million km) No indication of cometary object at expected position (circled) with expected mag (+15.9)		C/2019 U6 (Lemmon) - 2020-10-30, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's (slow) rate of motion (Ra 76.75 arcsec/hr, Dec 2.73 arcsec/hr)
Annotated CCD Image (50% size, linear scale) 6 x 60s exposure (average combine), 3x3 binning, C Filter 2020-10-30 19:48 UT (#825068-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, linear scale, cropped) Image details as left
Images of C/2019 U6 (Lemmon) on Comets 2020 Page >>

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NGC 2232 - Open Cluster (H VIII-25)

NGC 2232 \ H VIII-25 (Monoceros) Attempted Mosaic. Incomplete due to cloud / session suspension

CCD Image (19% size, linear scale)  3 x 30s exposure (average combine), 3x3 binning, C Filter 2020-11-04 00:51 UT (#826207-24) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2232 - Earlier Mosaic Attempt (2020-10-29) Attempted Mosaic. Incomplete due to late start (timeslot timed out)

CCD Image (19% size, linear scale) 30s exposure (single subs), 3x3 binning, C Filter 2020-10-29 02:22 UT (#823051-65) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2232 - Earlier Image (2019-02-26) Bright star at top of image is 10 Monocerotis (HIP 30772), Mag +5.05

CCD Image (70% size) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2019-02-26 19:11 UT (#669012-18) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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NGC 3243 - Spiral Galaxy

NGC 3243 (Sextans) AT2019ahd discovered 2019/01/29.519 by ATLAS Poor quality image, target to be rescheduled.

CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2020-11-04 04:18 UT (#826227-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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NGC 3643 - Spiral Galaxy (SN 2020hvf follow-up)

NGC 3643 (Leo) Earlier images of NGC 3643 (May 2020) have shown SN 2020hvf (Type 1a) discovered 2020/04/21.380 by ATLAS  (Rochester Supernova site | Marc Deldman image | Robin Leadbetter image + spectra )

NGC 3643 - 2020-11-04 (T+196.8d) Image below (2020-11-04.201) was taken 196.8 days after discovery of SN 2020hvf Although image is of relativley poor quality there is no indication of any object at former position of SN (indicated by white cross hairs). It is appears that the SN has now faded to below detectable limits.

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-11-04 04:50 UT (#826250-54) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020hvf (NGC 3643) on Supernovae 2020 Page >>

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NGC 7656 - Spiral Galaxy

NGC 7656 (Aquarius) Ring Galaxy, J.Lowrey List Poor quality image, target to be rescheduled.

CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-11-03 20:12 UT (#826097-101) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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