David's Astronomy Pages Images - Session 1175 (2023-12-18)

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Session Notes

12P/Pons-Brooks - Comet 29P/Schwassmann-Wachmann - Comet 61P/Shajn-Schaldach - Comet (attempt) C/2019 T4 (ATLAS) - Comet C/2021 T4 (Lemmon) - Comet     GCVS GW Ori - T Tau Type variable     AT 2022vdr - CV Type Transient AT 2023cub - Transient AT 2023tjz - Transient / Carbon Star AT 2023twu - Type HPM Transient AT2023aaiv - GRB Afterglow Transient (Attempt) AT 2023aaky - CV Type Transient (Near NGC 957)     2MFGC 08161 - Galaxy with Type Ia Supernova 2022xld LEDA 1311625 - Galaxy with Transient AT 2023iez     NGC 1752 - Spiral Galaxy with Transient AT 2023exk NGC 2848 - Spiral Galaxy with Type II Supernova 2023usp NGC 3021 - Spiral Galaxy with Type II Supernova 2023bvj NGC 4490 - Spiral Galaxy (H I-198) NGC 5468 - Spiral Galaxy with Type Ic Supernova 2023cj NGC 5866 - Spiral Galaxy (H I-215)     SN 2023zvq - Type Ia Supernova     UGC 2822 - Spiral Galaxy with Type Ia Supernova 2023dea UGC 9002 - Spiral Galaxy with Type II Supernova 2023pls       - AT2023eme attempt failed (due to Cloud)   - UGC 3174 w/SN 2023mut attempt failed (due to Cloud / bad guiding)     Variable Stars (photometric monitoring) - BL Lac, GW Ori, ER UMa      Nearby Stars (astrometric monitoring) - DX Cnc, CN Leo

- Attempted All-Night Session (8.7 hrs)     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 1.5°C (min) - CCD Temperature:   -20° C - Notes from 2023-12-18 >>     -

12P/Pons-Brooks - Comet (Outburst)

12P/Pons-Brooks - 2023-12-19 (passing through Lyra) Sun Distance 2.16 AU (approaching) Earth Distance 2.41 AU (359.8 million km)		12P/Pons-Brooks - 2023-12-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 88.13 arcsec/hr, Dec -3.27 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 90s exposure (single frame), 3x3 binning, Clear Filter 2023-12-19 06:21 UT (#1175220) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log root scale, cropped) 6 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 06:28 UT (#1175220-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
12P/Pons-Brooks - 2023-12-19 Detail		12P/Pons-Brooks - 2023-12-19 Detail
Annotated false-colour CCD Image (50% size, log scale) 6 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 06:28 UT (#1175220-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated false-colour CCD Image (100% size, log scale, cropped) Image details as left
Images of 12P/Pons-Brooks on Comets 2023 Page >>

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29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2023-12-19 (passing through Cancer) Sun Distance 6.16 AU (receeding slowly) Earth Distance 5.38 AU (804.9 million km)		29P/Schwassmann-Wachmann - 2023-12-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -11.30 arcsec/hr, Dec 1.64 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 8 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 02:30 UT (#1175122-32) 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 29P/Schwassmann-Wachmann on Comets 2023 Page >>

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61P/Shajn-Schaldach - Comet (attempted observation)

61P/Shajn-Schaldach - 2023-12-19 (passing through Leo) Sun Distance 3.49 AU Earth Distance 2.90 AU (434.1 million km) Expected position of comet (not visible) is shown by white circle		61P/Shajn-Schaldach - 2023-12-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -11.30 arcsec/hr, Dec 1.64 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 8 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 02:30 UT (#1175122-32) 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 61P/Shajn-Schaldach on Comets 2023 Page >>

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C/2019 T4 (ATLAS) - Comet

C/2019 T4 (ATLAS) - 2023-12-19 (passing through Hercules) Sun Distance 6.17 AU (receeding) Earth Distance 6.86 AU (1026.9 million km)		C/2019 T4 (ATLAS) - 2023-12-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 31.52 arcsec/hr, Dec 5.84 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 6 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 05:47 UT (#1175201-07) 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/2021 T4 (Lemmon) - Comet

C/2021 T4 (Lemmon) - 2023-12-19 (passing through Libra) Sun Distance 2.40 AU Earth Distance 3.08 AU (460.1 million km)		C/2021 T4 (Lemmon) - 2023-12-19 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 4.02 arcsec/hr, Dec 16.49 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 06:41 UT (#1175229-35) 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/2021 T4 (Lemmon) on Comets 2023 Page >>

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GCVS GW Ori - T Tau Type variable

GCVS GW Ori (Orion) Ori GW, Star with protoplanetray disk

Annotated CCD Image (50% size, linear scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 01:07 UT (#1175070-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

GCVS GW Ori - Detail Measured Magnitude +9.98

Annotated CCD Image (100% size, linear scale, cropped) Image details as above

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AT 2022vdr - CV Type Transient

AT 2022vdr (Orion) AT 2022vdr (Type: CV) discovered 2022-09-20.378 UT by MASTER Alias: MASTER OT J052749.27+064639.1 Discovery Mag 14.8 (Clear Filter)  ( TNS 2022vdr )

AT 2022vdr - 2023-12-18 (T+454.6d) Image below (2023-12-18.985) was taken 454.6 days after discovery of 2022vdr Position of reported nova (distinct) is shown by white cross-hairs Measured magnitude +14.04

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 23:42 UT (#1175031-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022vdr on Transients 2022 Page >>

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AT 2023cub - Transient

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AT 2023tjz - Transient / Carbon Star

AT 2023tjz (Orion) AT 2023tjz (Type: unk) discovered 2023-09-17.895 UT by Gaia Alias: Gaia23cnk Discovery magnitude 12.44 (G-Gaia filter) vs Historic Mag 10.71 Known Carbon star fades by 1.5 mag  ( TNS 2023tjz | Gaia23cnk )

AT 2023tjz - 2023-12-19 (T+92.2d) Image below (2023-12-19.053) was taken 92.2 days after discovery of 2023tjz Position of earlier reported transient (distinct) is shown by white cross-hairs Measured magnitude +12.56 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 01:19 UT (#1175077-79) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023tjz on Transients 2023 Page >>

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AT 2023twu - Type HPM Transient

AT 2023twu (Canis Minor) AT 2023twu (Type: HPM) discovered 2023-10-01.748 UT by MASTER Alias: MASTER OT J072725.46+051206.3 Discovery magnitude  9.1(Clear Filter) vs Previous Mag >  17.7 (limiting flux)  ( TNS 2023twu )

AT 2023twu - 2023-12-18 (T+78.2d) Image below (2023-12-18.960) was taken 78.2 days after discovery of 2023twu Position of reported transient (bright,  brightening ?) is shown by white cross-hairs Measured magntitude +10.14(Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 23:09 UT (#1175016-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023twu on Transients 2023 Page >>

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AT2023aaiv - GRB Afterglow Transient (Attempted Observation)

AT 2023aaiv (Cassiopeia) AT 2023aaiv (Type: Afterglow) discovered 2023-12-15.437 UT by MASTER Alias: MASTER OT J003857.42+573849.6, GRB 231215A Discovery Magnitude 16.5 (Clear Filter) Optical counterpart to GRB 231215A  ( TNS 2023aaiv )

AT 2023aaiv - 2023-12-19 (T+3.6d) Image below (2023-12-19.000) was taken 3.6 days after discovery of 2023aaiv Position of earlier reported transient (not visible or barely so) is shown by white circle

Annotated Negative CCD Image (250% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 00:09 UT (#1175043-47) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2023aaiv ? (T+3.6d) Position of possible AT 2023aaiv source shown by white cross-hairs This is slightly offset from the reported coordinates (centre of circle above) but seems justifiable as it is doesn't correspond to an object in DDS2 Reference Image

Annotated Negative CCD Image (250% size, square root scale, cropped) Image details as above

AT 2023aaiv - Reference Image

PanSTARRS DR1  Image (Negative) (Captured from Aladin, cropped to same FOV as 250% size image above

Images of AT 2023aaiv on Transients 2023 Page >>

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AT 2023aaky - CV Type Transient (Near NGC 957)

AT 2023aaky (Perseus) AT 2023aaky (Type: CV) discovered 2023-12-15.096 UT by Gaia Alias: Gaia23dql Discovery magnitude 11.62 (G-Gaia Filter)  vs Historic Magnitude 11.97 +/- 0.07 SD Bright Gaia source brightens by 0.4 mag, previous events seen  ( TNS 2023aaky | Gaia23dql )

AT 2023aaky - 2023-12-19 (T+3.9d) Image below (2023-12-19.015) was taken 3.9 days after discovery of 2023aaky Position of reported transient (distinct) is shown by white cross-hairs Measured Magnitude +11.81 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 00:25 UT (#1175050-54) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023aaky on Transients 2023 Page >>

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2MFGC 08161 - Galaxy (PGC 1139067) with Type Ia Supernova 2022xld

2MFGC 08161 with SN 2022xld (Sextans) SN 2022xld (Type: Ia) discovered 2022-10-13.527 UT by ZTF Alias: ZTF22abmzdzr Discovery Magnitude 17.78 (r-ZTF filter)  ( TNS 2022xld )

2MFGC 08161 with SN 2022xld (T+431.6d)  2MFGC 08161 (alias PGC 1139067, catalog mag +16.9) , PGC 1137578 catalog mag +17.3),  PGC 1139473 (catalog mag +17.8), Light artefact on right hand side of image is from HIP 51437 (GCVS Beta Sex, catalog mag +5.0), lying 7' outside FOV

Annotated CCD Image (60% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 04:20 UT (#1175171-75) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

2MFGC 08161 with SN 2022xld - 2023-12-19 (T+431.6d) Image below (2023-12-19.175) was taken 431.6 days after discovery of 2022xld Position of earlier SN (no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 04:20 UT (#1175171-75) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022xld (in 2MFGC 08161) on Supernova 2022 Page >>

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LEDA 1311625 - Galaxy with Transient AT 2023iez

LEDA 1311625 with AT 2023iez (Virgo) AT 2023iez (Type: unk) discovered 2023-05-13.310 UT by ZTF Alias: ZTF23aajjayv, TCP J13070070+0659214 Discovery Magnitude 16.55 (r-ZTF filter)  ( TNS 2023iez )

LEDA 1311625 - Galaxy LEDA 1311625 (alias  PGC 1311625, catalog mag +17.1) PGC 1312597 (catalog +16.2), PGC 1313190 (catalog mag +17.4), PGC 1312996 (catalog mag +17.7), PGC 1312609 (catalog mag +18.6)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 04:46 UT (#1175180-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 1311625 with AT 2023iez - 2023-12-19 (T+219.9d) Image below (2023-12-19.192) was taken 219.9 days after discovery of 2023iez Position of earlier tranisent (no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 04:46 UT (#1175180-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023iez (in LEDA 1311625) on Transients 2023 Page >>

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NGC 1752 - Spiral Galaxy with Transient AT 2023exk

NGC 1752 with AT 2023exk (Eridanus) AT 2023exk (Type: unk) discovered 2023-04-10.008 UT by ATLAS Alias: ATLAS23hjo Discovery Magnitude 17.77 (orange-ATLAS filter) ( TNS 2023exk )

NGC 1752 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 01:59 UT (#1175110-12) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1752 with AT 2023exk - 2023-12-19 (T+253.1d) Image below (2023-12-19.079) was taken 253.1 days after discovery of 2023exk Position of earlier tranisent (no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 01:59 UT (#1175110-12) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023exk (in NGC 1752) on Transients 2023 Page >>

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NGC 2848 - Spiral Galaxy with Type II Supernova 2023usp

NGC 2848 with SN 2023usp (Hydra) SN 2023usp (Type: II) discovered 2023-10-03.729 UT by ATLAS (TNS shows discovery date as 2023-10-12 08:18:50 ) Alias: ATLAS23uai, Gaia23cxo Discovery Magnitude 18.26 (orange-ATLAS filter) Gaia Alerting Mag 18.44  (2023-10-03 17:29:51) Confirmed SN II  ( TNS 2023usp | Gaia23cxo )

NGC 2848 with SN 2023usp - 2023-12-19 (T+76.4d) Image below (2023-12-19.160) was taken 76.4 days after discovery of 2023usp Position of earlier SN (not visible) is indicated by white cross-hairs. Poor quality image (faint cloud / variable sky background)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 04:00 UT (#1175164-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023usp (in NGC 2848) on Supernova 2023 Page >>

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NGC 3021 - Spiral Galaxy with Type II Supernova 2023bvj

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NGC 4490 - Spiral Galaxy (H I-198)

NGC 4490 / NGC 4485 (Canes Venatici) NGC 4490 - Cocoon Nebula (middle),  interacting with NGC 4485 (top) Alias : Herschel I-198,  Hidden Treasures 63  [ Herschel 400 Objects ]  [ Hidden Treasures ]

Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 02:59 UT (#1175140-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4490 / NGC 4485 - Detail

Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 02:59 UT (#1175140-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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

NGC 4490 / NGC 4485 - Earlier Image (Dec 2006)

CCD Image 5 x 180s exposure (average combine), 2x2 binning, C Filter 2006-12-20 06:30h UT (#167511-15) 8" LX200 Classic + ST-7E

NGC 4490 - Earlier Image (Mar 2008) with SN 2008ax (T+4.2d)

Annotated CCD Image 7 x 120s exposure (average combine), 2x2 binning, C Filter  2008-03-08 00:48 hUT (#273136-42) 8" LX200 Classic + ST-7E

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NGC 5468 - Spiral Galaxy with Type Ic Supernova 2023cj

NGC 5468 with SN 2023cj (Virgo) SN 2023cj (Type: Ic) discovered 2023-01-05.845 UT by Gaia Alias: Gaia23ada Discovery Mag 16.97 (G-Gaia Filter)  ( TNS 2023cj | Gaia23ada )

NGC 5468 with SN 2023cj - 2023-12-19 (T+347.4d) Image below (2023-12-19.249) was taken 347.4 days after discovery of 2023cj Position of earlier supernova (faded & no longer visible) is shown by white cross-hairs Non Detection, limiting magnitude +18.5 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 06:08 UT (#1175212-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023cj (NGC 5468) on Supernova 2023 Page >>

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NGC 5866 - Spiral Galaxy (Herschel I-215)

NGC 5866 (Draco) Alias: H I-215, Hidden Treasures 75  [ Herschel 400 Objects ]  [ Hidden Treasures ]

Annotated CCD Image (50% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 22:51 UT (#1175009-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5866 - Detail

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

Negative CCD Image (100% size, log scale, cropped) Image details as above

NGC 5866 - Earlier Image (Oct 2013)

CCD Image (50%,  Linear Scale) 5 x 120s exposure (average combine), 3x3 binning, C Filter  2013-10-15 20:38hUT (#549098-102) 12" LX200R  (at f/9.7) + ST-10XME

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SN 2023zvq - Type Ia Supernova

SN 2023zvq (Virgo) Alias: In APMUKS(BJ) B142143.52-032817.7 SN 2023zvq (Type: Ia, z = 0.012) discovered 2023-12-12.547 UT by ZTF Alias: ZTF23abtniaf, TCP J14242032-0341478, ATLAS23xrp Discovery Mag 14.15 (r-ZTF Filter) SN in APMUKS(BJ) B142143.52-032817.7  ( TNS 2023zvq )

SN 2023zvq - 2023-12-19 (T+6.7d) Image below (2023-12-19.222) was taken 6.7 days after discovery of 2023zvq Position of reported supernova (fairly bright) is shown by white cross-hairs Measured magnitude +14.59 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 05:28 UT (#1175194-98) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023zvq on Supernova 2023 Page >>

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UGC 2822 - Spiral Galaxy with Type Ia Supernova 2023dea

UGC 2822 with SN 2023dea (Perseus) SN 2023dea (Type: Ia) discovered 2023-03-16.263 UT by ATLAS Alias: ATLAS23drz, ZTF23aacyjti Discovery Magnitude 17.78 (r-ZTF filter)  ( TNS 2023dea )

UGC 2822 - Spiral Galaxy

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 23:27 UT (#1175022-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2822 with SN 2023dea - 2023-12-18 (T+277.7d) Image below (2023-12-18.971) was taken 277.7 days after discovery of 2023dea Position of earlier SN (no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 23:27 UT (#1175022-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023dea (in UGC 2822) 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 - 2023-12-19 (T+126.2d) Image below (2023-12-19.207) was taken 126.2 days after discovery of 2023pls Position of reported SN (very faint & fading) is indicated by white cross-hairs. Measured Magnitude +17.46 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-19 05:07 UT (#1175187-91) 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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