David's Astronomy Pages CCD Images - Session 888 (2021-04-20)

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Images (S889)

Objects	Session Notes
Nova Per 2020 - Nova (V1112 Per, AT2020abap)     IC 863 - Spiral Galaxy with Type IIn Supernova 2021foa     NGC 3310 - Spiral Galaxy (Herschel IV-60) with SN 2021gmj NGC 5018 - Elliptical Galaxy with Type Ia Supernova 2021fxy     Variable Stars (photometric monitoring) - None     Nearby Stars (astrometric monitoring) - Barnards Star, 61 Cyg	- Night session (5.6 hours) - Main aims of the session were to acquire a selection of variable star, nearby star and comet targets and deep sky targets as cloud allowed - Poor quality skies - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 2°C (min) - CCD Temperature:  -20°C - Notes from 2021-04-20 >>    [ Local Files >> ]   -

Nova Per 2020 - Nova (V1112 Per, AT2020abap)

Nova Per 2020 (Perseus) Nova in Perseus discovered 2020/11/25.807 [ Novae ] Nova Per 2020 discovered independently by Seiji Ueda and Stanislav Korotkiy et al AT2020abap (Type: CV) reported 2020/11/27.230 UT by PGIR Alias: N Per 2020 , PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232, V1112 Per

Nova Per 2020 - 2021-04-21 (T+146.2d) Image below (2021-04-21.014) was taken 146.2 days after discovery of nova Nova is shown by white cross hairs.  Measured magnitude +14.0 (rising again ?)

Annotated CCD Image (100% size, linear scale, cropped) 90s exposure (single frame), 3x3 binning, C Filter 2021-04-21 00:21 UT (#888038) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Per 2020 on Novae Page >>

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IC 863 - Spiral Galaxy with Type IIn Supernova 2021foa

IC 863 with SN 2021foa (Virgo) SN 2021foa (Type: IIn) discovered 2021/03/15.450 UT by ASAS-SN Alias: ASASSN-21dg Discovery Magnitude 15.9 (g-Sloan Filter) vs Prior Non-Detection Limiting Magnitude 17.9  ( Rochester Supernova site | Discovery Image | TNS 2021foa )

IC 863 with SN 2021foa - 2021-04-21 (T+36.6d) Image below (2021-04-21.043) was taken 36.6 days after discovery of 2021foa SN is indicated by white cross-hairs.  Estimated Magnitude +15.5 (Clear Filter)

Annotated CCD Image  (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-04-21 01:09 UT (#888050-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021foa (IC 863) on Supernovae 2021 Page >>

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NGC 3310 - Spiral Galaxy  (Herschel IV-60) with Type II Supernova 2021gmj

NGC 3310 / Herschel IV-60 with SN2021gmj (Ursa Major) SN 2021gmj (Type: II) discovered 2021/03/20.320 UT by DLT40 Alias: ZTF21aaqgmjt, ATLAS21izq Discovery Magnitude 15.98 (r-Sloan Filter)  ( Rochester Supernova site |  Gianluca Masi image | TNS 2021gmj )

NGC 3310 with SN 2021gmj - 2021-04-21 (T+31.7d) Image below (2021-04-21.001) was taken 31.7 days after discovery of 2021gmj Position of SN (faint) is indicated by white cross-hairs Estimated Magnitude +15.0 (Clear Filter) Poor quality image (bright sky background, single frame)

CCD Image (100% size, log scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2021-04-21 00:02 UT (#888033) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021gmj (NGC 3310) on Supernovae 2021 Page >>

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NGC 5018 - Elliptical Galaxy with Type Ia Supernova 2021fxy

NGC 5018 with SN 2021fxy (Virgo) SN 2021fxy (Type: Ia) discovered 2021/03/17.725 UT by Koichi Itagaki Discovery Magnitude 16.9 (Clear Filter) vs Prior Non-Detection in DSS Image  ( Rochester Supernova site | Discovery Image | Paolo Campaner image ) ( TNS 2021fxy )

NGC 5018 with SN 2021fxy - 2021-04-21 (T+34.3d) Image below (2021-04-21.027) was taken 34.3 days after discovery of 2021fxy SN is indicated by white cross-hairs.  Measured magnitude + 14.57 (Clear Filter)

Annotated CCD Image  (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-04-21 00:46 UT (#888043-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021fxy (NGC 5018) on Supernovae 2021 Page >>

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