David's Astronomy Pages Images - Session 1106 (2023-03-10)

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Session Notes

C/2020 V2 (ZTF) - Comet C/2022 A2 (PANSTARRS) - Comet C/2022 E3 (ZTF) - Comet     AT 2023ctt - CV Type Transient     M31 - Spiral Galaxy with Transient AT 2023brc (Attempt) NGC 1637 - Spiral Galaxy (UGCA 93) NGC 2283 - Spiral Galaxy with Type II Supernova 2023axu NGC 2936 - Spiral Galaxy (The Porpoise Galaxy, ARP 142)     UGC 3044 - Irregular Galaxy with Type II Supernova 2023cf     -  AT2023cts attempt failed (due to cloud)     Variable Stars (photometric monitoring) - None      Nearby Stars (astrometric monitoring) - HH And, Groombridge 34

- Evening session (3.5 hours), ended at 23:19 after skies clouded over.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -2°C (min) - CCD Temperature:    -25°C - Notes from 2023-03-10 >>

C/2020 V2 (ZTF) - Comet

C/2020 V2 (ZTF) - 2023-03-10 (passing through Andromeda) Sun Distance 2.33 AU (approaching) Earth Distance 2.75 AU (411.8 million km)		C/2020 V2 (ZTF) - 2023-03-10 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 29.22 arcsec/hr, Dec -50.71 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 21:51 UT (#1106105-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log scale, cropped) 15 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 21:58 UT (#1106105-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2020 V2 (ZTF) on Comets 2022 Page >>  Images of C/2020 V2 (ZTF) on Comets 2023 Page >>

C/2020 V2 (ZTF)  - False Colour Inverse Spectrum Images

C/2020 V2 (ZTF)  - 2023-03-10

False Colour CCD Image (70% size, log scale) 15 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 21:58 UT (#1106105-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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C/2022 A2 (PANSTARRS) - Comet

C/2022 A2 (PANSTARRS) - 2023-03-10  (passing through Andromeda) Sun Distance 1.76 AU (receeding) Earth Distance 2.16 AU (323.9 million km)		C/2022 A2 (PANSTARRS) - 2023-03-10 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 110.42 arcsec/hr, Dec -40.21 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 60s exposure (single frame), 3x3 binning, Clear Filter 2023-03-10 20:03 UT (#1106058) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 20:07 UT (#1106058-62) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2022 A2 (PANSTARRS) on Comets 2023 Page >>

C/2022 A2 (PANSTARRS)  - False Colour Inverse Spectrum Images

C/2022 A2 (PANSTARRS) - 2023-03-10

False Colour CCD Image (70% size, log scale) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 20:07 UT (#1106058-62) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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C/2022 E3 (ZTF) - Comet

C/2022 E3 (ZTF) - 2023-03-10 (passing through Eridanus) Sun Distance 1.44 AU (receediing) Earth Distance 1.23 AU (184.1 million km) with Spiral galaxy NGC 1637 at top left of image		C/2022 E3 (ZTF) - 2023-03-10 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 14.52 arcsec/hr, Dec -49.79 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 20s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 19:30 UT (#1106006-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 39 x 20s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 19:39 UT (#1106006-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2022 E3 (ZTF) on Comets 2023 Page >>
Images of C/2022 E3 (ZTF) on Comets 2022 Page >>

C/2022 E3 (ZTF)  - False Colour Inverse Spectrum Images

C/2022 E3 (ZTF) - 2023-03-10 with Spiral galaxy NGC 1637 at top left of image

False Colour CCD Image (70% size, log scale) 39 x 20s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 19:39 UT (#1106006-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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AT 2023ctt - CV Type Transient

AT 2023ctt (Triangulum) AT 2023ctt (Type: CV) discovered 2023-03-04.895 UT by Gaia Alias: Gaia23azi Discovery Mag 15.78 (Clear filter) vs Historic Magnitude 18.86 4 mag outburst in candidate CV  ( TNS 2023ctt | Gaia23azi)

AT 2023ctt  (T+6.0d)

Annotated CCD Image (50% size, linear scale) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 21:39 UT (#1106098-101) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2023ctt - 2023-03-10 (T+6.0d) Image below (2023-03-10.900) was taken 6.0 days after discovery of 2023ctt Position of reported transient (faint) is shown by white cross-hairs Measured Magnitude +18.42

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 21:39 UT (#1106098-101) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023ctt on Transients 2023 Page >>

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M31 - Spiral Galaxy with Transient AT 2023brc (Attempt / Unconfirmed)

M31 with AT 2023brc (Andromeda) AT 2023brc (Type: unk) discovered 2023-02-13.558 UT by XOSS Alias: XM96MZ, PNV J00422147+4112452 Discovery Mag 18 (Clear filter)  ( Rochester Supernova site | TNS 2023brc )

M31 with AT 2023brc - 2023-03-10 (T+25.3d) Image below (2023-03-10.887) was taken 25.3 days after discovery of 2023brc Position of reported transient (not visible) is shown by white circle

Annotated CCD Image (100% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 21:24 UT (#1106092-95) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023brc (M31) on Transients 2023 Page >>

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 NGC 1637 - Spiral Galaxy (UGCA 93)

NGC 1637 / UGCA 93 (Eridanus)

C/2022 E3 (ZTF)  passing by NGC 1637

Annotated CCD Image (50% size, square root scale) 3 x 20s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 19:30 UT (#1106006-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1637 - Earlier Image (2020)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-11-20 00:42 UT (#830109-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CCD Image (100% size, square root scale, cropped) Image details as above

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NGC 2283 - Spiral Galaxy with Type II Supernova 2023axu

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NGC 2936 - Spiral Galaxy (The Porpoise Galaxy, ARP 142)

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UGC 3044 - Irregular Galaxy with Type II Supernova 2023cf

UGC 3044 with SN 2023cf (Taurus) SN 2023cf (Type: II) discovered 2023-01-07.225 UT by ZTF Alias: ZTF23aaaatjn Discovery Mag 17.51 (orange-ATLAS filter)  ( Rochester Supernova site | TNS 2023Q )

UGC 3044 with SN 2023cf - 2023-03-10 (T+62.7d) Image below (2023-03-10.925) was taken 62.7 days after discovery of 2023cf Position of reported SN (faint but still distinct) is shown by white cross-hairs Measured magnitude +16.71

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-03-10 22:19 UT (#1106122-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023cf (UGC 3044) on Supernova 2023 Page >>

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