David's Astronomy Pages CCD Images - Session 813 (2020-09-26)

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IC 1222 - Spiral Galaxy (ARP 73)  with SN 2020enm UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq     Variable Stars (photometric monitoring) - R CrB, S Cyg, AM Her - U Her attempt failed (timed out)     Nearby Stars (astrometric monitoring) - None

- Evening session (1.3 hours total) - Main aims of the session were the acquisition of a selection of deep sky targets, together with some variable star, nearby starand comet targets - Session cut short due to problematic sky conditions (variable cloud cover, fast moving clouds affecting imaging and guiding, wind) and Dome Data Issues - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 8°C (min) - CCD Temperature:  -15°C  - Notes from 2020-09-26 >>      -

IC 1222 - Spiral Galaxy (ARP 73) with SN 2020enm

IC 1222 with SN 2020enm (Hercules) IC 1222 (catalog mag +13.4), aliases  ARP 73, PGC 58544 SN 2020enm  (Type Ia-99a SN) discovered 2020/03/16.913 by Xingming Observatory Sky Survey (XOSS)  (Rochester Supernova site |  Discovery Image |  mag +17.7 V at discovery )

IC 1222 with SN 2020enm - 2020-09-26 (T+76.1d) Image (2020-09-26.844) taken 193.9 days after SN discovery. SN is not visible and confirms last observation that SN has dimmed significantly  SN is below limiting magnitude ~18.3

Annotated CCD Image (100% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2020-09-26 20:15 UT (#813008) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020enm (IC 1222) on Supernovae 2020 Page >>

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UGC 6930 - Spiral Galaxy with Type Ia Supernova 2020rcq

UGC 6930 with SN 2020rcq (Ursa Major) SN 2020rcq (Type 1a, z=0.002597) discovered 2020/08/09.168 by Zwicky Transient Facility (ZTF)  (Rochester Supernova site | Giancarlo Cortini image | )

UGC 6930 with SN 2020rcq - Detail, 2020-09-16 (T+48.7d) Image below (2020-09-26.858) was taken 48.7 days after discovery of SN 2020rcq SN is shown by white cross hairs.  Measured SN magnitude +13.4

Annotated CCD Image (100% size, square root scale, cropped) 2 x 120s exposure (average combine), 3x3 binning, C Filter 2020-09-26 20:35 UT (#813021-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2020rcq (UGC 6930) on Supernovae 2020 Page >>

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