David's Astronomy Pages CCD Images - Session 955 (2022-01-17)

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Session Notes

C/2019 L3 (ATLAS) - Comet     Nova Per 2020 - Nova (V1112 Per) Nova Cas 2021 - Nova (V1405 Cas)     AT 2021rl - BL Type Transient (QSO 0954+658)     NGC 958 - Spiral Galaxy with Type Ic Supernova 2022ao NGC 7594 - Spiral Galaxy with Type Ia Supernova 2022de     WISEA J095040.62+475756.9 - Galaxy with Type II Supernova 2021aalq        - 67P/Churyumov-Gerasimenko & AT2021agoa attempts failed (due to close proximity to moon / bright sky )      Variable Stars (photometric monitoring) - U And, SY Cnc, BL Lac, CN Ori, FU Ori, NV Ori, GK Per, RR Tau      Nearby Stars (astrometric monitoring) - Scholz's Star

- Evening session 4.3 hours - Start of session delayed by TeleAPI issue (lost setting) - Poor quality sky with high cloud/low transparency which eventualy thickened and ended the session early at 00:05. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -1°C (min) - CCD Temperature:  -25°C - Notes from 2022-01-17 >>    [ Local Files >> ]

C/2019 L3 (ATLAS) - Comet

C/2019 L3 (ATLAS) (passing through Gemini) Sun Distance 3.56 AU (approaching) Earth Distance 2.60 AU (389.2 million km) Poor quality image (due to very bright moonlit sky)		C/2019 L3 (ATLAS)  - 2022-01-17, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -34.78 arcsec/hr, Dec -30.53 arcsec/hr) Poor quality image (due to very bright moonlit sky)
Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2022-01-17 21:15 UT (#955047-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2022-01-17 21:18 UT (#955047-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 L3 (ATLAS) on Comets 2022 Page >>

C/2019 L3 (ATLAS) Inverse Spectrum

C/2019 L3 (ATLAS)  - 2022-01-17

Not shown due to light artefact

False Colour CCD Image (70% size, log scale) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2022-01-17 21:18 UT (#955047-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Nova Per 2020 - Nova (V1112 Per, AT 2020abap)

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 - 2022-01-17 (T+418.0d) Image below (2022-01-17.835) was taken 418.0 days after discovery of nova Nova is shown by white cross hairs.  Measured magnitude +16.03 (fading)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 90s exposure (average combine), 3x3 binning, C Filter 2022-01-17 20:07 UT (#955007-10) 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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Nova Cas 2021 - Nova (V1405 Cas)

Nova Cas 2021 (Cassiopeia) Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan) Magnitude at discovery +9.6 (unfiltered CCD) AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, AT2021hkn, V1405 Cas

Nova Cas 2021 - 2022-01-17 (T+305.5d) Image below (2022-01-17.915) was taken 305.5 days after discovery of V1405 Cas Nova is shown by white cross hairs.  Measured magnitude +9.45 (linked with Detection Threshold = 15)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 30s exposure (average combine), 3x3 binning, C Filter 2022-01-17 21:59 UT (#955081-85) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-17 (T+305.5d)

Spectra produced in AstroMain using Image taken with Star Analyser 200 5 x 30s exposure (average combine), 2x2 binning, S Filter 2022-01-17 22:03 UT (#955086-90) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Cas 2021 on Novae Page >>

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AT 2021rl - BL Type Transient (QSO 0954+658)

AT2 021rl (Ursa Major) BL Type Transient, QSO 0954+658, 6C 095456+654857 AT 2021rl (Type: BL) discovered 2021/01/06.449 UT by Gaia Alias: Gaia21acz   Triggering Magnitude 14.21 (vs Historic Magnitude 15.57) ( Gaia21acz )

AT 2021rl - 2022-01-17 (T+376.5d) Image below (2022-01-17.923) was taken 376.5 days after discovery of 2021rl BL Type object shown by white cross hairs. Measured magnitude +15.02

Annotated CCD Image  (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-01-17 22:19 UT (#955094-98) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2021rl  (QSO 0954+658) on Transients 2021 Page >>

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NGC 958 - Spiral Galaxy with Type Ic Supernova 2022ao

NGC 958 with SN2022ao (Cetus) SN 2022ao (Type: Ic) discovered 2022-01-05.280 UT by ATLAS Alias: ATLAS22aim Magnitude at discovery 18.00 [ Rochester Supernova site  | TNS 2022ao ]

NGC 958 with SN 2022ao - 2022-01-17 (T+12.5d) Image below (2022-01-17.825) was taken 12.5 days after discovery of 2022ao Position of reported SN (not visible / not distinguishable) is indicated by white cross-hairs

CCD Image (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2022-01-17 19:52 UT (#955003-04) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022ao (NGC 958) on Supernovae 2022 Page >>

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NGC 7594 - Spiral Galaxy with Type Ia Supernova 2022de

NGC 7594 with SN 2022de (Pegasus) SN 2022de (Type: Ia) discovered 2022-01-07.202 UT by ATLAS Alias: ATLAS22apu Magnitude at discovery +17.30 [ Rochester Supernova site  | TNS 2022de ]

NGC 7594 with SN 2022de - 2022-01-17 (T+10.7d) Image below (2022-01-17.868) was taken 10.7 days after discovery of 2022de Position of reported SN (faint / indistinct) is indicated by white cross-hairs Poor quality image (due to very bright moonlit sky)

CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-01-17 20:59 UT (#955040-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022de (NGC 7594) on Supernovae 2022 Page >>

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WISEA J095040.62+475756.9 - Galaxy with Type II Supernova 2021aalq

WISEA J095040.62+475756.9 with SN 2021aalq (Ursa Major) SN 2021aalq (Type: II) discovered 2021-10-03.620 UT by ASAS-SN Alias: ASASSN-21sj, Gaia21etp [ TNS 2021aalq ]

WISEA J095040.62+475756.9 with SN 2021aalq - 2022-01-17 (T+106.4d) Image below (2022-01-17.993) was taken 106.4 days after discovery of 2021aalq Position of SN (faint / instinct ) is indicated by white cross hairs.   Very poor quality image due to bright moonlit sky

Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2022-01-17 23:59 UT (#955161-65) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

WISEA J095040.62+475756.9 with SN 2021aalq - Earlier Image, 2022-01-09 (T+97.5d) Image below (2022-01-09.163) was taken 97.5 days after discovery of 2021aalq Position of SN (faint) is indicated by white cross hairs.

Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2022-01-09 04:05 UT (#951080-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021aalq (WISEA J095040.62+475756.9) on Supernovae 2021 Page >>

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