David's Astronomy Pages CCD Images - Session 766 (2020-04-06)

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Images (S767)

Objects	Session Notes
NGC 5157 - Spiral Galaxy with Type 1a SN 2020ees IC 1222 - Spiral Galaxy (ARP 73)  with SN 2020enm     Variable Stars (photometric monitoring)   - RX And, U Gem, AM Her, RZ LMi, CY Lyr, FG Sge     Nearby Stars (astrometric monitoring)  - Groombridge 34	- All night session (6.2 hours total). Session interrupted by cloud - Main aims of the session was to  acquire images of a selection of deep sky and comet objects     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 2°C (min) (Dew heaters on auto) - CCD Temperature:  -20°C  (65% av. power) - Notes from 2020-04-06 >>

NGC 5157 - Spiral Galaxy with Type 1a Supernovae 2020ees

NGC 5157 with SN 2020ees (Canes Venatici) SN 2020ees (Type 1a), discovered 2020/03/05.472 by ATLAS  (Rochester Supernova site | Odd Trondal image  ) Image below (2020-04-06.948) was taken 32.48 days after discovery of SN 2020ees SN is shown by white cross hairs.   Estimated SN magnitude +16.7 Image taken under very poor sky conditions, thin cloud & moonlight

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-06 22:45 UT (#766021-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5157 with SN 2020ees - Earlier Image (2020-03-27) Image below (2020-03-27.928) was taken 22.46 days after discovery of SN 2020ees SN is shown by white cross hairs.   Estimated SN magnitude +16.4

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-03-27 22:17 UT (#764081-85) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5157 with SN 2020ees - Earlier Wide View (2020-03-27) SN 2020ees, Type 1a Supernova Other galaxies in view :  PGC 47206 (catalog mag +15.5), PGC 1972782 (+17.8),  PGC 1978267 (+17.9),  PGC 1977070 (+18.0), PGC 1979392 (+18.1)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-03-27 22:17 UT (#764081-85) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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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 - 2020-04-06 (T+21.1d) Image (2020-04-06.960) taken 21.1 days after SN discovery. SN shown by white cross hairs. Measured Magnitude +16.8

Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-06 23:02 UT (#766028-30) 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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