David's Astronomy Pages Images - Session 1130 (2023-08-16)

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Objects	Session Notes
C/2019 T4 (ATLAS) - Comet C/2022 W3 (Leonard) - Comet C/2023 E1 (ATLAS) - Comet AT 2022qnm - Type ulens? Transient AT 2022zkp - CV Type Transient     M101 - Spiral Galaxy with Type IIL Supernova 2023ixf NGC 513 - Spiral Galaxy with Transient AT 2023jpp (Attempt)         Variable Stars (photometric monitoring) - RX And, S Cyg      Nearby Stars (astrometric monitoring) -  Barnards Star, 61 Cyg   -	- Attempted all night session (2.8 hrs),  ended early due to cloud.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 9°C (min) - CCD Temperature:  -10° / -15° C - Notes from 2023-08-16 >>     -

C/2019 T4 (ATLAS) - Comet

C/2019 T4 (ATLAS) - 2023-08-16 (passing through Serpens) Sun Distance 5.52 AU (receeding) Earth Distance 5.60 AU (838.0 million km)		C/2019 T4 (ATLAS) - 2023-08-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 14.78 arcsec/hr, Dec -9.27 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-16 22:35 UT (#1130015-17) 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 2023-08-16 22:37 UT (#1130015-21) 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/2022 W3 (Leonard) - Comet

C/2022 W3 (Leonard) - 2023-08-16 (passing through Vulpecula) Sun Distance 1.61 AU Earth Distance 0.76 AU (113.6 million km) Expected position of comet indicated by white circle.		C/2019 T4 (ATLAS) - 2023-08-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -143.29 arcsec/hr, Dec -304.99 arcsec/hr) Comet is indicated by white cross-hairs
Annotated CCD Image (50% size, square root scale) 6 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-16 23:36 UT (#1130056-62) 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 2023-08-16 23:36 UT (#1130056-62) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2022 W3 (Leonard) on Comets 2023 Page >>

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C/2023 E1 (ATLAS) - Comet

C/2023 E1 (ATLAS) - 2023-08-17 (passing through Cygnus) Sun Distance 1.28 AU (receeding) Earth Distance 0.37 AU (56.1 million km)		C/2023 E1 (ATLAS) 2023-08-17, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 66.10 arcsec/hr, Dec -313.01 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, Clear Filter 2023-08-17 00:44 UT (#1130102) 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) 6 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-08-17 00:46 UT (#1130101-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2023 E1 (ATLAS) on Comets 2023 Page >>

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AT 2022zkp - CV Type Transient

AT 2022zkp (Aquila) AT 2022zkp (Type: CV) discovered 2022-11-03.394 UT by MASTER Alias: MASTER OT J191304.39+044053.5 Discovery Magnitude 13.1 (Clear Filter)  ( TNS 2022zkp )

AT 2022zkp - 2023-08-16 (T+286.6d) Image below (2023-08-16.957) was taken 286.6 days after discovery of 2022zkp Position of reported transient (distinct) is shown by white cross-hairs Measured Magnitude +13.35

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-16 23:01 UT (#1130042-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022zkp on Transients 2022 Page >>

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AT 2022qnm - Type ulens? Transient

AT 2022qnm (Vulpecula) AT 2022qnm (Type: ulens?) discovered 2022-07-28.562 UT by Gaia Alias: Gaia22ddh Alerting Magnitude 13.64 vs Historic Magnitude 13.92(Clear Filter)  ( TNS 2022qnm , Gaia22ddh)

AT 2022qnm - 2023-08-16 (T+384.4d) Image below (2023-08-16.965) was taken 384.4 days after discovery of 2022qnm Position of reported transient (distinct) is shown by white cross-hairs Measured Magnitude +13.97 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-16 23:18 UT (#1130049-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022qnm on Transients 2022 Page >>

Light Artefact Image show a light artefact that initially looked like a potential nebula Investigating shows that there is no known nebula at the location and that the feature is most likely a light artefact from nearby Mag 4.66 star HIP 98543 that lies 4.75 arc min outside field of view.

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-16 23:18 UT (#1130049-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-16 23:18 UT (#1130049-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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M101 - Spiral Galaxy with Type IIL Supernova 2023ixf

M101 with SN 2023ixf (Ursa Major) SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki Alias: ZTF23aaklqou, AT2023iyi, AT2023jgd, AT2023jfz, PSN J14033858+5418421, PS23dij Discoverer Mag 14.9 (Clear filter)  ( Rochester Supernova site | TNS 2023ixf )

M101 with SN 2023ixf - 2023-08-16 (T+89.2d) Image below (2023-08-16.930) was taken 89.2 days after discovery of 2023ixf Position of supernova (still distinct but fading) is shown by white cross-hairs Measured Magnitude +13.12

Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-16 22:24 UT (#1130009-11) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023ixf (M101) on Supernova 2023 Page

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NGC 513 - Spiral Galaxy with Transient AT 2023jpp (Attempt)

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