David's Astronomy Pages CCD Images - Session 1136 (2023-08-31)

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Session Notes

C/2019 T4 (ATLAS) - Comet C/2020 R7 (ATLAS) - Comet C/2022 L2 (ATLAS) - Comet C/2023 E1 (ATLAS) - Comet     AT 2023qoo - Afterglow Type Transient (from GRB 230818A) (Attempt)     LEDA 1488100 - Galaxy with Type Ia Supernova 2023olz NGC 2326 - Spiral Galaxy with Type II Supernova 2023pgb     UGC 3174 - Irregular Galaxy with Type IIb Supernova 2023mut UGC 9002 - Spiral Galaxy with Type II Supernova 2023pls UGC 9350 - Spiral Galaxy with Type Ib Supernova 2023nny       - CGCG 373-018 w/SN2022osg attempts failed (due to bright moonlit sky background)     Variable Stars (photometric monitoring) - Z And      Nearby Stars (astrometric monitoring) -  Barnards Star   -

- Attempted all-night session (6.9 hrs),  interrupted twice by clouds     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 5°C (min) - CCD Temperature:  -15°/-20° C - Notes from 2023-08-31 >>     -

C/2019 T4 (ATLAS) - Comet

C/2019 T4 (ATLAS) - 2023-08-31 (passing through Serpens) Sun Distance 5.59 AU (receeding) Earth Distance 5.85 AU (875.1 million km)		C/2019 T4 (ATLAS) - 2023-08-31 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 19.64 arcsec/hr, Dec -9.35 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-31 22:13 UT (#1136037-43) 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 C/2019 T4 (ATLAS) on Comets 2023 Page >>

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C/2020 R7 (ATLAS) - Comet

C/2020 R7 (ATLAS) - 2023-08-31  (passing through Corona Borealis) Sun Distance 4.47 AU (receeding) Earth Distance 4.73 AU (708.2 million km)		C/2020 R7 (ATLAS) - 2023-08-31 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 2.20 arcsec/hr, Dec -9.62 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-31 21:56 UT (#1136028-34) 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 2023-08-31 21:56 UT (#1136028-34) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2020 R7 (ATLAS) on Comets 2023 Page >>

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C/2022 L2 (ATLAS) - Comet

C/2022 L2 (ATLAS) - 2023-08-31 (passing through Serpens) Sun Distance 3.35 AU (approaching) Earth Distance 3.60 AU (537.9 million km)		C/2022 L2 (ATLAS) - 2023-08-31 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -13.83 arcsec/hr, Dec -35.10 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-31 21:00 UT (#1136005-11) 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 2023-08-31 21:00 UT (#1136005-11) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2022 L2 (ATLAS) on Comets 2023 Page >>

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C/2023 E1 (ATLAS) - Comet

C/2023 E1 (ATLAS) - 2023-09-01 (passing through Pegasus) Sun Distance 1.42 AU (receeding) Earth Distance 0.43 AU (64.8 million km) Poor quality image due to bright sky background		C/2023 E1 (ATLAS) 2023-09-01, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 34.82 arcsec/hr, Dec -259.99 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, Clear Filter 2023-09-01 01:24 UT (#1136074) 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) 5 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-09-01 01:27 UT (#1136074-79) 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 2023qoo - Afterglow Type Transient (from GRB 230818A)  (attempted observation)

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LEDA 1488100 - Galaxy with Type Ia Supernova 2023olz

LEDA 1488100 with SN 2023olz (Taurus) SN 2023olz (Type: Ia) discovered 2023-08-04.405 UT by ZTF Alias: ZTF23aavxtvg Discovery Magnitude 19.02 (g-ZTF Filter)  ( TNS 2023olz )

LEDA 1488100 with SN 2023olz - 2023-09-01 (T+27.7d) Image below (2023-09-01.090) was taken 27.7 days after discovery of 2023olz Position of reported SN (faint but distinct) is indicated by white cross-hairs. Measured Magnitude +15.58 (nucleus + SN)

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-01 02:17 UT (#1136096-99) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023olz (in LEDA 1488100) on Supernova 2023 Page >>

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NGC 2326 - Spiral Galaxy with Type II Supernova 2023pgb

NGC 2326 with SN 2023pgb (Lynx) SN 2023pgb (Type: II) discovered 2023-08-12.496 UT by ZTF Alias: ZTF23aaxdfya Discovery Magnitude 17.44 ( r-ZTF)  ( TNS 2023pgb )

NGC 2326 with SN 2023pgb - 2023-09-01 (T+19.6d) Image below (2023-09-01.141) was taken 19.6 days after discovery of 2023pgb Position of reported SN (faint) is indicated by white cross-hairs. Measured Magnitude ? Poor quality image (bright moonlit sky background / single frame)

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2023-09-01 03:23 UT (#1136109) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023pgb (in NGC 2326) on Supernova 2023 Page >>

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UGC 3174 - Irregular Galaxy with Type IIb Supernova 2023mut

UGC 3174 with SN 2023mut (Orion) SN 2023mut (Type: IIb) discovered 2023-07-11.180 UT by ASAS-SN Alias: ASASSN-23fh Discovery Magnitude 15.2 (g-Sloan Filter)  ( TNS 2023mut )

UGC 3174 with SN 2023mut - 2023-09-01 (T+51.9d) Image below (2023-09-01.126) was taken 51.9 days after discovery of 2023mut Position of reported SN (indistinct) is indicated by white cross-hairs. Measured Magnitude +14.91 (nucleus + SN)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-01 03:10 UT (#1136102-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023mut (in UGC 3174) on Supernova 2023 Page >>

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UGC 9002 - Spiral Galaxy with Type II Supernova 2023pls

UGC 9002 with SN 2023pls (Bootes) SN 2023pls (Type: II) discovered 2023-08-14.976 UT by ATLAS Alias: ATLAS23red, Gaia23cbq Discovery Magnitude 17.54 (cyan-ATLAS) z (redshift) = 0.0136  ( TNS 2023pls | Gaia23cbq )

UGC 9002 with SN 2023pls - 2023-08-31 (T+16.9d) Image below (2023-08-31.883) was taken 16.9 days after discovery of 2023pls Position of reported SN (faint) is indicated by white cross-hairs. Measured Magnitude +16.59

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-31 21:20 UT (#1136015-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023pls (in UGC 9002) on Supernova 2023 Page >>

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UGC 9350 - Spiral Galaxy with Type Ib Supernova 2023nny

UGC 9350 with SN 2023nny (Bootes) SN 2023nny (Type: Ib) discovered 2023-07-20.221 UT by ALeRCE Alias: ZTF23aaszwst Discovery Magnitude 17.72 ( g-ZTF Filter) vs Last Non Detection 20.49 limiting mag  ( TNS 2023nny )

UGC 9350 with SN 2023nny - 2023-08-31 (T+42.7d) Image below (2023-08-31.897) was taken 42.7 days after discovery of 2023nny Position of reported SN (not separately distinguishable) is indicated by white cross-hairs. Measured Magnitude +14.67 (nucleus + SN)

Annotated CCD Image (175% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-31 21:41 UT (#1136022-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023nny (in UGC 9350) on Supernova 2023 Page >>

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