David's Astronomy Pages CCD Images - Session 1191 (2024-02-24)

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Session Notes

12P/Pons-Brooks - Comet 62P/Tsuchinshan - Comet 103P/Hartley - Comet C/2021 F1 (Lemmon-PANSTARRS) - Comet (non-detection)     AT 2022udu - CV Type Transient, in Ced 90 AT 2023rao - Transient AT 2023tjz - Transient / Carbon Star AT 2023tow - Nova Transient AT 2023vqz - Type QSO Transient in WISEA Galaxy AT 2023wbv - CV Type Transient AT 2023aanv - CV Type Transient AT 2023abtv - CV Type Transient AT 2024nn - CV Type Transient (non-detection) AT 2024ajb - Transient (non-detection) AT 2024crd - Type Nova? Transient AT 2024ctz - CV Type Transient AT 2024dcg - CV Type Transient     Ced 90 - Bright Nebula (Seagull Nebula) CGCG 221-034 - Galaxy with Type Ia Supernova 2023sza (non-detection) LEDA 1045595 - Galaxy (PGC 1045595) M101 - Spiral Galaxy with Type IIL Supernova 2023ixf     NGC 1752 - Spiral Galaxy with Transient AT 2023exk NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk     SN 2023dzc - Type Ia Supernova in WISEA Galaxy SN 2023oun - Type Ia Supernova in WISEA Galaxy SN 2023zvq - Type Ia Supernova     UGC 3174 - Irregular Galaxy with Type IIb Supernova 2023mut UGC 9002 - Spiral Galaxy with Type II Supernova 2023pls UGC 11858 - Spiral Galaxy with Type Ia Supernova 2023rjj UGC 12639 - Spiral Galaxy with Type II Supernova 2023jri     Variable Stars (photometric monitoring) - AM CVn, SS Her, RZ LMi, BL Lac, CN Ori      Nearby Stars (astrometric monitoring) - DX Cnc

- All Night Session (x hrs) with minor interruptions by cloud     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -x°C (min) - CCD Temperature:   -x°/x°C - Notes from 2024-02-24 >>     -

12P/Pons-Brooks - Comet (Outburst)

12P/Pons-Brooks - 2024-02-24 pm (passing through  Andromeda) Sun Distance 1.28 AU (approaching) Earth Distance 1.72 AU (257.3 million km)		12P/Pons-Brooks -  2024-02-24 pm Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 187.86 arcsec/hr, Dec -24.24 arcsec/hr)
Annotated CCD Image (50% size, log scale) 90s exposure (single frame), 3x3 binning, Clear Filter 2024-02-24 19:41 UT (#1191016) 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) Image details as left
12P/Pons-Brooks - 2024-02-24 pm Detail		12P/Pons-Brooks - 2024-02-24 pm Detail
Annotated false-colour CCD Image (50% size, log scale) 90s exposure (single frame), 3x3 binning, Clear Filter 2024-02-24 19:41 UT (#1191016) 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) Inverse Spectrum Image details as left
Images of 12P/Pons-Brooks on Comets 2023 Page >>
Images of 12P/Pons-Brooks on Comets 2024 Page >>

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62P/Tsuchinshan - Comet

62P/Tsuchinshan - 2024-02-25 (passing through Virgo) Sun Distance 1.46 AU (receeding) Earth Distance 0.53 AU (78.6 million km)		62P/Tsuchinshan - 2024-02-25 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -17.10 arcsec/hr, Dec 3.35 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 02:02 UT (#1191197-98) 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 90s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 02:07 UT (#1191197-203) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 62P/Tsuchinshan on Comets 2023 Page >>
Images of 62P/Tsuchinshan on Comets 2024 Page >>

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103P/Hartley - Comet

103P/Hartley - 2024-02-25 (passing through Monoceros) Sun Distance 1.99 AU AU (receeding) Earth Distance 1.12 AU (168.0 million km)		103P/Hartley - 2024-02-25  Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -1.83 arcsec/hr, Dec 34.89 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 00:23 UT (#1191149-51) 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 above
Images of 103P/Hartley on Comets 2023 Page >>
Images of 103P/Hartley on Comets 2024 Page >>

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C/2021 F1 (Lemmon-PANSTARRS) - Comet (non-detection)

C/2021 F1 (Lemmon-PANSTARRS) - 2024-02-24 (passing through Octans), bug ! the star field captured is in Cancer Sun Distance 7.68 AU (receeding) Earth Distance 7.78 AU (1,164.3 million km) Expected position of comet (not visible) is indicated by white circle (??) Comet is too far to be seen even if sky quality was better		C/2021 F1 (Lemmon-PANSTARRS) - 2024-02-24 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 9.50 arcsec/hr, Dec -15.38 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 5 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 23:10 UT (#1191111-15) 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 left
Images of C/2021 F1 (Lemmon-PANSTARRS) on Comets 2024 Page >>

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AT 2022udu - CV Type Transient, in Ced 90

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AT 2023rao - Transient

AT 2023rao (Pegasus) AT 2023rao (Type: unk) discovered 2023-08-16.381 UT by Gaia Alias: Gaia23bxu Alerting Mag +16.92 (G-Gaia Filter)  (vs Historic Magnitude +17.65) Brightening in Gaia, WISE and UV source  ( TNS 2023rao | Gaia23bxu )

AT 2023rao - 2024-02-24 (T+192.5d) Image below (2024-02-24.846) was taken 192.5 days after discovery of 2023rao Position of transient (faint & stable) is shown by white cross-hairs Measured magnitude +16.25 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 20:27 UT (#1191033-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023rao on Transients 2023 Page >>

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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 - 2024-02-24 (T+160.0d) Image below (2024-02-24.917) was taken 160.0 days after discovery of 2023tjz Position of earlier reported transient (distinct, brightening ?) is shown by white cross-hairs Measured magnitude +12.31 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 22:02 UT (#1191076-78) 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 2023tow - Nova Transient

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AT 2023vqz - Type QSO Transient in WISEA Galaxy

AT 2023vqz (Auriga) In WISEA J064410.86+354644.6 AT 2023vqz (Type: QSO) discovered 2023-10-16.370 UT by Gaia Alias: Gaia23cxv Discovery magnitude 15.39 (G-Gaia Filter)  vs Historic magnitude 16.31 +/- 0.25 SD Brightening in known QSO Gaia, 2019-04-11 18:20, mag 16.08 Gaia, 2020-03-13 07:16, mag 15.90 Gaia, 2023-04-09 20:40, mag 15.50 Gaia, 2023-10-16 10:40, mag 15.41 ( Whilst discovery alert only triggered on 2023-10-16 (at Historic Mag - 3 *SD)  the QSO has been brighter than normal range (16.0-16.6) since 2020-03-13  )  ( TNS 2023vqz | Gaia23cxv )

AT 2023vqz - 2024-02-24 (T+131.5d) Image below (2024-02-24.892) was taken 131.5 days after discovery of 2023vqz Position of reported transient (faint but distinct) is shown by white cross-hairs Measured Magnitude + 15.08 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 21:35 UT (#1191061-65) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023vqz (in WISEA Galaxy) on Transients 2023 Page >>

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AT 2023wbv - CV Type Transient

AT 2023wbv (Perseus) AT 2023wbv (Type: CV) discovered 2023-10-30.032 UT by MASTER Alias: MASTER OT J041624.14+392546.7 Discovery magnitude 11.9 (Clear Filter)  ( TNS 2023wbv )

AT 2023wbv - 2024-02-24 (T+117.9d) Image below (2024-02-24.885) was taken 117.9 days after discovery of 2023wbv Position of reported transient (distinct) is shown by white cross-hairs Measured magntitude +12.19 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 21:17 UT (#1191054-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023wbv on Transients 2023 Page >>

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AT 2023aanv - CV Type Transient

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AT 2023abtv - CV Type Transient

AT 2023abtv (Pegasus) AT 2023abtv (Type: CV) discovered 2023-12-26.986 UT by Gaia Alias: Gaia23duv Discovery magnitude 12.07 (G-Gaia Filter) vs Historic Magnitude 13.38 +/- 0.57 (SD) Gaia and WISE source brightens by 2 mag  ( TNS 2023abtv | Gaia23duv )

AT 2023abtv - 2024-02-25 (T+60.2d) Image below (2024-02-25.208) was taken 60.2 days after discovery of 2023abtv Position of reported transient (bright) is shown by white cross-hairs Measured Magnitude +11.94 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 05:04 UT (#1191282-86) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023abtv on Transients 2023 Page >>

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AT 2024nn - CV Type Transient (non-detection)

AT 2024nn (Hydra) AT 2024nn (Type: CV) discovered 2024-01-03.870 UT by XOSS Alias: KATS24A003, TCP J09113728-1229315, Gaia24aer Discovery magnitude 16.92 (Clear Filter) Apparently hostless blue transient  ( TNS 2024nn | Gaia24aer )

AT 2024nn - 2024-02-24 (T+52.1d) Image below (2024-02-24.948) was taken 52.1 days after discovery of 2024nn Position of reported transient (not visible, likely faded) is shown by white cross-hairs Non-Detection, Limiting Magnitude +17.7 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 22:47 UT (#1191097-100) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024nn on Transients 2024 Page >>

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AT 2024ajb - Transient (non-detection)

AT 2024ajb (Auriga) AT 2024ajb (Type: unk) discovered 2024-01-16.406 UT by ATLAS Alias: ATLAS24azn Discovery magnitude 16.75 (orange-ATLAS Filter)  ( TNS 2024ajb )

AT 2024ajb - 2024-02-24 (T+39.5d) Image below (2024-02-24.931) was taken 39.5 days after discovery of 2024ajb Position of reported transient (not visible, likely faded) is shown by white cross-hairs Non-Detection, Limiting Magnitude +18.0 (Clear Filter) Bright star in FOV is 51 Aur / HIP 31771 (mag 5.70)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 22:29 UT (#1191090-94) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024ajb on Transients 2024 Page >>

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AT 2024crd - Type Nova? Transient

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AT 2024ctz - CV Type Transient

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AT 2024dcg - CV Type Transient

AT 2024dcg (Lynx) AT 2024dcg (Type: CV) discovered 2024-02-19.350 UT by ATLAS Alias: ATLAS16dzn Discovery magnitude 16.15 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 19.51  ( TNS 2024dcg )

AT 2024dcg - 2024-02-25 (T+5.7d) Image below (2024-02-25.071) was taken 5.7 days after discovery of 2024dcg Position of reported transient (faint) is shown by white cross-hairs Measured Magnitude +15.65 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 120s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 01:48 UT (#1191189-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024dcg on Transients 2024 Page >>

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Ced 90 - Bright Nebula (Seagull Nebula)

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CGCG 221-034 - Galaxy with Type Ia Supernova 2023sza (non-detection)

CGCG 221-034 with SN 2023sza (Bootes) SN 2023sza (Type: Ia) discovered 2023-09-17.254 UT by ATLAS Alias: ATLAS17jtt, Gaia23cpb, ZTF23abhvqgq Discovery magnitude 17.54 (cyan-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 19.22 SN near galaxy CGCG 221-034 Gaia, 2023-09-22 07:43:44, mag 16.92 Gaia, 2023-11-08 15:08:27, mag 18.77 Gaia, 2023-12-03 01:27:11, mag 19.41  ( TNS 2023sza | Gaia23cpb )

CGCG 221-034 - Galaxy Alias:  PGC 54212 (catalog mag +15.9)

Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 04:16 UT (#1191242-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

CGCG 221-034 with SN 2023sza - 2024-02-25 (T+160.9d) Image below (2024-02-25.172) was taken 160.9 days after discovery of 2023sza Position of reported supernovat (not visible, likely faded) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.5 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 04:16 UT (#1191242-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023sza (in CGCG 221-034 ) on Supernova 2023 Page >>

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LEDA 1045595 - Galaxy (PGC 1045595)

LEDA 1045595 (Virgo) Alias: PGC 1045595 (catalog mag +17.3)

Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 02:26 UT (#1191206-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 1045595 - Detail

Annotated CCD Image (150% size, square root scale, cropped) Image details as above

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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 ) SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki at Mag 14.9 is located near M101's prominant star-forming region NGC 5461.  The supernova resulted from a exploding red supergiant and lies just 21 million light years away.  It's the closest core-collapse supernova to us since SN 1993J which lit up M81 (some 12 million ly away) in Spring 1993. The SN is designated of type II-L (L for 'linear') , which is characterised by a rapid rise to maximum brightness  followed by a slow and gradual decrease, that is thought to be brought about by ejection of the dead stars' outer hydrogen shell. (from Article "Summer's Super Supernova", AstNow Magazine, Sep 2023, pp 36-39)

M101 with SN 2023ixf - 2024-02-25 (T+281.4d) Image below (2024-02-25.126) was taken 281.4 days after discovery of 2023ixf Position of supernova (faint) is shown by white cross-hairs Measured Magnitude +15.79 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 03:09 UT (#1191220-24) 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 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 with AT 2023exk - 2024-02-24 (T+320.9d) Image below (2024-02-24.862) was taken 320.9 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) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 20:51 UT (#1191040-44) 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 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk

NGC 3690 with SN 2023wrk (Ursa Major) SN 2023wrk (Type: Ia) discovered 2023-11-04.229 UT by GOTO Alias: GOTO23bdo, ZTF23abpbdfm, ATLAS23vna Discovery Magnitude 18.11 (L-GOTO filter)  ( Rochester Supernova site ) ( TNS 2023wrk )

NGC 3690 with SN 2023wrk - 2024-02-25 (T+112.9d) Image below (2024-02-25.112) was taken 112.9 days after discovery of 2023wrk Position of SN (fading ?) is shown by white cross-hairs Measured Magnitude +16.27 (C Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 02:50 UT (#1191213-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023wrk (in NGC 3690) on Supernovae 2023 Page >>

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SN 2023dzc - Type Ia Supernova in WISEA Galaxy

SN 2023dzc (Camelopardalis) In WISEA J061158.69+584900.6 SN 2023dzc (Type: Ia) discovered 2023-03-27.270 UT by ASAS-SN Alias: ASASSN-23cb, ATLAS23elh, ZTF23aadvxih, Gaia23bos Discovery Magnitude 15.9 (g-Sloan filter) vs Prior Non-Detection Limiting Magnitude 18.2 Confirmed SN Ia Gaia, 2023-04-15 02:58:46, mag 14.78 Gaia, 2023-05-08 09:00:07, mag 15.91 Gaia, 2023-09-09 20:56:45, mag 19.39 Gaia, 2023-10-13 04:17:22, mag 19.99 ( TNS 2023wrk | Gaia23bos )

WISEA Galaxy with SN 2023dzc (T+334.7d) WISEA J061158.69+584900.6

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 00:06 UT (#1191142-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2023dzc - 2024-02-24 (T+334.7d) Image below (2024-02-24.998) was taken 334.7 days after discovery of 2023dzc Position of earlier SN (faded & no longer visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.5 (C Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 00:06 UT (#1191142-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023dzc (in WISEA Galaxy) on Supernovae 2023 Page >>

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SN 2023oun - Type Ia Supernova in WISEA Galaxy

SN 2023oun (Camelopardalis) In WISEA J045312.04+631004.3 SN 2023oun (Type: Ia) discovered 2023-08-08.169 UT by GOTO Alias: GOTO23vp, Gaia23chj Discovery Magnitude 16.69 (L-GOTO filter) vs Prior Non-Detection Limiting Magnitude 19.3 Confirmed SN Ia Gaia, 2023-09-07 08:59:35, mag 18.19 Gaia, 2023-10-13 08:21:43, mag 19.60  ( TNS 2023oun | Gaia23chj )

WISEA Spiral Galaxy with SN 2023oun (T+200.8d) WISEA J045312.04+631004.3

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 23:44 UT (#1191135-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2023oun - 2024-02-24 (T+200.8d) Image below (2024-02-24.983) was taken 200.8 days after discovery of 2023oun Position of earlier SN (faded & no longer visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.5 (C Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 23:44 UT (#1191135-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023oun (in WISEA Galaxy) on Supernovae 2023 Page >>

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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 - 2024-02-25 (T+74.6d) Image below (2024-02-25.158) was taken 74.6 days after discovery of 2023zvq Position of earlier supernova (faint, fading) is shown by white cross-hairs Measured magnitude +16.81 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 03:55 UT (#1191235-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2023zvq - Earlier Image, 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 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  / GOTO Group Alias: ASASSN-23fh Discovery Magnitude 15.2 (g-SLOAN Filter)  ( TNS 2023mut )

UGC 3174 with SN 2023mut - 2024-02-24 (T+228.6d) Image below (2024-02-24.794) was taken 228.6 days after discovery of 2023mut Position of reported SN (fading) is indicated by white cross-hairs. Measured Magnitude +17.52 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 19:12 UT (#1191006-10) 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 - 2024-02-25 (T+194.1d) Image below (2024-02-25.055) was taken 194.1 days after discovery of 2023pls Position of reported SN (very faint & fading) 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 2024-02-25 01:28 UT (#1191182-86) 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 11858 - Spiral Galaxy with Type Ia Supernova 2023rjj

UGC 11858 with SN 2023rjj (Cygnus) SN 2023rjj (Type: Ia) discovered 2023-09-05.340 UT by ALeRCE Alias: ZTF23abaxkwq Discovery Magnitude 18.17 (g-ZTF Filter)  ( TNS 2023rjj )

UGC 11858 with SN 2023rjj - 2024-02-25 (T+172.8d) Image below (2024-02-25.142) was taken 172.8 days after discovery of 2023rjj Position of earlier supernova (faded & no longer visible) is indicated by white cross-hairs. Non-Detection Limiting Magnitude +18.0 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-25 03:32 UT (#1191227-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11858 with SN 2023rjj - Earlier Image, 2023-09-08 (T+3.6d) Image below (2023-09-08.900) was taken 3.6 days after discovery of 2023rjj Position of reported supernova (faint but distinct) is indicated by white cross-hairs. Measured Magnitude ? (unable to differentiate SN from nucleus)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-08 21:45 UT (#1141045-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023rjj (in UGC 11858) on Supernova 2023 Page >>

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UGC 12639 - Spiral Galaxy with Type II Supernova 2023jri

UGC 12639 with SN 2023jri (Pegasus) SN 2023jri (Type: II) discovered 2023-05-29.577 UT by ATLAS Alias: ATLAS23lqb Discovery Magnitude 16.48 (orange-ATLAS Filter)  ( TNS 2023jri )

UGC 12639 with SN 2023jri - 2024-02-24 (T+271.2d) Image below (2024-02-24.824) was taken 271.2 days after discovery of 2023jri Position of reported transient (likely no longer visible) is indicated by white cross-hairs. Estimated Measured +18.5 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-24 19:55 UT (#1191020-24) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023jri (in UGC 12639) on Supernova 2023 Page >>

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