David's Astronomy Pages Images - Session 1118 (2023-04-25)

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Images (S1119)

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Session Notes

81/P Wild - Comet C/2019 T4 (ATLAS) - Comet C/2019 U5 (PANSTARRS) - Comet     AT 2023cvz - CV Type Transient AT 2023gde - Nova Type Transient     IC 4305 - Elliptical Galaxy with Type Ia Supernova 2023edc NGC 4611 - Spiral Galaxy with Type Ia Supernova 2023dtz NGC 4995 - Spiral Galaxy with Type II Supernova 2023gfo NGC 5915 - Spiral Galaxy with Type Ia Supernova 2023cpt PGC 42608 - Spiral Galaxy     UGC 10678 - Spiral Galaxy with Type Ia Supernova 2023foa     Variable Stars (photometric monitoring) - SS Cyg, SS Her, BL Lac      Nearby Stars (astrometric monitoring) -  HH And, Barnards Star, Groombridge 34

- All night session (4.9 hours). Start slightly delayed by issues with ShCap Client Check and CCDSoft / Camera.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -1°C (min) - CCD Temperature:   -20°/ -25°C - Notes from 2023-04-25 >>     -

81/P Wild - Comet

81P/Wild - 2023-04-26 (passing through Sagittarius) Sun Distance 2.03 AU (receeding) Earth Distance 1.26 AU (188.5 million km)		81P/Wild - 2023-04-26 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -0.64 arcsec/hr, Dec 2.43 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 11 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-26 02:33 UT (#1118123-33) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) Image details as left
Images of 81/P Wild on Comets 2016 Page >>
Images of 81/P Wild on Comets 2022 Page >>
Images of 81/P Wild on Comets 2023 Page >>

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C/2019 T4 (ATLAS) - Comet

C/2019 T4 (ATLAS) - 2023-04-25 (passing through Serpens) Sun Distance 4.99 AU (receeding) Earth Distance 4.15 AU (621.4 million km)		C/2019 T4 (ATLAS) - 2023-04-25 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -15.19 arcsec/hr, Dec 23.27 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-25 22:56 UT (#1118020-22) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-25 22:58 UT (#1118020-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 T4 (ATLAS) on Comets 2023 Page >>

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C/2019 U5 (PANSTARRS) - Comet

C/2019 U5 (PANSTARRS) - 2023-04-25 (passing through Leo) Sun Distance 3.63 AU (receeding) Earth Distance 2.88 AU (430.4 million km)		C/2019 U5 (PANSTARRS) - 2023-04-25 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -58.19 arcsec/hr, Dec -7.12 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-25 22:44 UT (#1118013-15) 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) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-25 22:45 UT (#1118013-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 U5 (PANSTARRS) on Comets 2022 Page >> Images of C/2019 U5 (PANSTARRS) on Comets 2023 Page >>

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AT 2023cvz - CV Type Transient

AT 2023cvz (Aquila) AT 2023cvz (Type: CV) discovered 2023-03-07.959 UT by Gaia Alias: Gaia23bay Alerting Magnitude 12.85 (g-GAIA Filter) vs Historic Magnitude 13.79) ~0.9 mag rise in Gaia source  ( TNS 2023cvz | Gaia23bay)

AT 2023cvz - 2023-04-26 (T+49.1d) Image below (2023-04-26.061) was taken 49.1 days after discovery of 2023cvz Position of reported CV Transient (fading) is shown by white cross-hairs Measured magnitude +13.12

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-04-26 01:31 UT (#1118077-81) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023cvz on Transients 2023 Page >>

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AT 2023gde - Nova Type Transient

AT 2023gde (Aquila) AT 2023gde (Type: Nova) discovered 2023-04-10.430 UT by PGIR Alias: PGIR23gjp Discovery Mag 12.55 (J-Bessel Filter)  ( Rochester Supernova site | TNS 2023gde )

AT 2023gde - 2023-04-26 (T+15.6d) Image below (2023-04-26.044) was taken 15.6 days after discovery of 2023gde Position of reported transient (faded since discovery) is shown by white cross-hairs Measured Magnitude +12.56 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-26 01:09 UT (#1118070-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023gde on Transients 2023 Page >>

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IC 4305 - Elliptical Galaxy with Type Ia Supernova 2023edc

IC 4305 with SN 2023edc (Canes Venatici) SN 2023edc (Type: Ia) discovered 2023-03-28.518 UT by PS1 Alias: PS23bcb Discovery Mag 18.12 (w-PI Filter)  ( Rochester Supernova site | TNS 2023edc )

IC 4305 with SN 2023edc - 2023-04-25 (T+28.5d) Image below (2023-04-25.985) was taken 28.5 days after discovery of 2023edc Position of reported SN (faint but distinct) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-25 23:47 UT (#1118043-47) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023edc (IC 4305) on Supernova 2023 Page >>

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NGC 4611 - Spiral Galaxy with Type Ia Supernova 2023dtz

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NGC 4995 - Spiral Galaxy with Type II Supernova 2023gfo

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NGC 5915 - Spiral Galaxy with Type Ia Supernova 2023cpt

NGC 5915 with SN 2023cpt (Libra) SN 2023cpt (Type: Ia, z=0.00758) discovered 2023-02-27.356 UT by ATLAS Alias: ATLAS23cxk Discovery Mag 17.10 (cyan-ATLAS filter)  ( Rochester Supernova site | TNS 2023cpt )

NGC 5915 with SN 2023cpt - 2023-04-26 (T+57.7d) Image below (2023-04-26.015) was taken 57.7 days after discovery of 2023cpt Position of reported SN (faint but still distinct) is shown by white cross-hairs

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-26 00:30 UT (#1118057-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023cpt (NGC 5915) on Supernova 2023 Page >>

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PGC 42608 - Spiral Galaxy

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UGC 10678 - Spiral Galaxy with Type Ia Supernova 2023foa

UGC 10678 with SN 2023foa (Hercules) SN 2023foa (Type: Ia) discovered 2023-04-13.823 UT by ATLAS Alias: KATS23G001 Discovery Mag 16.26 (Clear Filter)  ( Rochester Supernova site | TNS 2023foa )

UGC 10678 with SN 2023foa - 2023-04-26 (T+12.2d) Image below (2023-04-26.031) was taken 12.2 days after discovery of 2023foa Position of reported SN (distinct) is shown by white cross-hairs Measured Magnitude +17.06 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-04-26 00:54 UT (#1118064-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023foa (UGC 10678) on Supernova 2023 Page >>

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