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

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

Observing Result

Image

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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)
Image   Image
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
Image   Image
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)
Image   Image
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)
Image   Image
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)
Image   Image
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

AT 2022udu (Canis Major)
AT 2022udu (Type: CV) discovered 2022-09-14.363 UT by Gaia
Alias: Gaia22dxb
Discovery Magnitude 16.62 (G-Gaia Filter)
vs Historic Magnitude  16.95 +/- 0.06
Source in star forming region brightens by 0.4 mag
 ( TNS 2022udu | Gaia22dxb )

 
Ced 90 - Bright Nebula

Image

Annotated CCD Image (50% size, linear scale)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-02-24 21:06 UT (#1191047-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
AT 2022udu - 2024-02-24 (T+528.5d)
Image below (2024-02-24.877) was taken 528.5 days after discovery of 2022udu
Position of earlier reported transient (faint) is shown by white cross-hairs
Measured Magnitude +16.08 (Clear Filter)

Image

Annotated CCD Image (50% size, linear scale)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-02-24 21:06 UT (#1191047-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2022udu on Transients 2023 Page >>

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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)
Image
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)
Image 
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

AT 2023tow (Scutum)
AT 2023tow (Type: Nova) discovered 2023-09-20.778 UT by Gaia
Alias: Gaia23coj, ZTF23abceaws
Discovery Magnitude 12.26 (G-Gaia Filter) vs Historic Magnitude - None
Red bright Galactic plane transient
 ( TNS 2023tow | Gaia23coj )

 
AT 2023tow - 2024-02-25 (T+157.4d)
Image below (2024-02-25.226) was taken 157.4 days after discovery of 2023tow
Position of earlier transient (no longer visible) is shown by white cross-hairs
Non-Detection

Image

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-02-25 05:33 UT (#1191296-300)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
AT 2023tow - Earlier Image, 2023-10-04 (T+14.1d)
Image below (2023-10-04.847) was taken 14.1 days after discovery of 2023tow
Position of reported transient (bright & distinct) is shown by white cross-hairs
Measured Magnitude +12.72 (Clear Filter)

Image

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-10-04 20:28 UT (#1154004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2023tow on Transients 2023 Page >>

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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)
Image
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)
Image 
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

AT 2023aanv (Cygnus)
AT 2023aanv (Type: CV) discovered 2023-12-19.681 UT by MASTER
Alias: MASTER OT J202117.51+304929.2
Discovery Magnitude 12.20 (Clear Filter)
vs Prior Non-Detection with Limiting Mag 18.9
Mira type variable in max
 ( TNS 2023aanv )

 
AT 2023aanv - 2024-02-25 (T+67.5d)
Image below (2024-02-25.200) was taken 67.5 days after discovery of 2023aanv
Position of reported transient (distinct, fading) is shown by white cross-hairs
Measured Magnitude +13.42 (Clear Filter)

Image

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-02-25 04:50 UT (#1191275-78)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2023aanv on Transients 2023 Page >>

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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)
Image 
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)
Image 
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)
Image 
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

AT 2024crd (Virgo)
AT 2024crd (Type: Nova?) discovered 2024-02-14.750 UT by Tadashi Kojima
Alias: TCP J13530185+0522000, Gaia24apm
Discovery Magnitude 13.2 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude 15.2
Transient on faint blue PanSTARRS source
 ( TNS 2024crd | Gaia24apm )
 
AT 2024crd - 2024-02-25 (T+10.3d)
Image below (2024-02-25.039) was taken 10.3 days after discovery of 2024crd
Position of reported transient (distinct, fading) is shown by white cross-hairs 
Measured Magnitude +14.12 (Clear Filter)

Image

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-02-25 00:59 UT (#1191170-74)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2024crd on Transients 2024 Page >>

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AT 2024ctz - CV Type Transient

AT 2024ctz (Hydra)
AT 2024ctz (Type: CV) discovered 2024-02-15.810 UT by MASTER
Alias: MASTER OT J092248.85-042426.8
Discovery Magnitude 15.9 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude 20.6
 ( TNS 2024ctz )
 
AT 2024ctz - 2024-02-24 (T+9.1d)
Image below (2024-02-24.954) was taken 9.1 days after discovery of 2024ctz
Position of reported transient (very faint, fading rapidly) is shown by white cross-hairs 
Measured Magnitude +17.24 (Clear Filter)

Image

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-02-24 22:57 UT (#1191104-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2024ctz on Transients 2024 Page >>

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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)
Image 
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)

Ced 90 (Canis Major)
Alias : Cederblad 90,  Sh2-297, Seagull Nebula, Gum 1 complex,  part of IC 2177.
A combination reflection and emission nebula

Image

Annotated CCD Image (50% size, linear scale)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-02-24 21:06 UT (#1191047-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Ced 90 - Detail
A dark nebula is present on right hand side of image
which contrasts with the Ced 90 bright nebula

Image

Annotated CCD Image (100% size, square root scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-02-24 21:06 UT (#1191047-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
 

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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)
Image 
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)
Image 
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)
Image 
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
Image 
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)
Image
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.
Image
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)
Image
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
Image
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)
Image
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
Image
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)
Image
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)
Image
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)
Image
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)
Image
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.
Image
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)
Image
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)
Image
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)
Image
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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