David's Astronomy Pages CCD Images - Session 675 (2019-03-23)

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Images (S676)

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Session Notes

46P/Wirtanen - Comet     NGC 3254 - Spiral Galaxy, with Type Ia Supernova 2019np     Photometric Monitoring - Variable Stars   - AM CVn, SY Cnc, R CrB, CI Cyg, S Cyg, U Gem, AM Her, RR Tau SS Cyg, BL Lac, CY Lyr, FG Sge attempts failed due to cloud     Astrometric Monitoring - Nearby Stars  - DX Cnc, CN Leo 61 Cyg, Groombridge 34  attempts failed due to cloud

- Late evening / night session,  Duration 6.7hr Session operated in  fully automated mode, and monitored over remote connection for first half After a promising start cloud  rolled-in after midnight and ruined images from second half of the session - Main aim of the session was general observing with mix of variable stars, nearby stars, comets and deep sky targets.      - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  1.5°C (min) - CCD Temperature:  -25°C  (85% av. power) - Notes from 2019-03-23 >>

46P/Wirtanen - Comet

46P/Wirtanen (passing through Leo Minor) Sun Distance 1.65 AU Earth Distance 0.83 AU (123.6 million km)		46P/Wirtanen - Detail
Annotated CCD Image (50% size, linear scale) 10 x 15s exposure (average combine), 3x3 binning, C Filter 2019-03-23 21:54 UT (#675013-22) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, linear scale) Image details as left
More Images of 46P/Wirtanen
46P/Wirtanen  - Earlier Image (2018-12-16) (passing through Taurus) Near to point of closest distance from earth Sun Distance 1.06 AU Earth Distance 0.08 AU (11.6 million km)		46P/Wirtanen  - Earlier Detail (2018-12-16)
CCD Image (50% size, linear scale) 15s exposure (single frame), 3x3 binning, C Filter  2018-12-16 21:03 UT (#641184) 12" LX200R  (at f/10.4) + ST-10XME		CCD Image (50% size, log scale) 31 x 15s exposure (average combine), 3x3 binning, C Filter  2018-12-16 21:03 to 21:16 UT (#641184-222) 12" LX200R  (at f/10.4) + ST-10XME (Autoguided on comet using TS 80mm APO + ZWO ASI178MC & PHD2)

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NGC 3254 - Spiral Galaxy with Type Ia Supernova 2019np

NGC 3254 with SN 2019np (Leo Minor) 2019np TNS discovered 2019/01/09.665 by Koichi Itagaki  (Rochester Supernova site |  Discovery Image | SN Type Ia, +16.9 (C) at discovery)

NGC 3254 with SN 2019np - 2019-03-09 (T+73.3d) Image below (2019-03-23.929) was taken 73.3 days after discovery SN is shown by white cross-hairs. Estimated magnitude +15.53

Annotated CCD Image (100% size, cropped) 3 x 120s exposure (average combine), 3x3 binning, C Filter 2019-03-23 22:18 UT (#675056-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2019np (NGC 3254) on Supernovae 2019 Page >>

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