RA/DEC (2000)
21:39:55.024 +06:00:12.08
324.979265899 +6.00335658141
Type
SN II
Redshift
0.063
Discovery ReportClassification Report
Related AstroNotes: 2025-162, 2025-219
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-25 13:35:38.688
TNS AT
Y
Public
Y
Discovery Mag
18.997
Filter
cyan-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025lzu - 2025-07-17 06:27:36 ESO-NTT / EFOSC2-NTT (None)z=
 ▌SN_2025lzu - 2025-05-30 08:41:24 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
▌Show O II at z=vexp= km/s
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌Show O V at z=vexp= km/s
▌Show O VI at z=vexp= km/s
▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
▌Show Mg II at z=vexp= km/s
▌Show Si II at z=vexp= km/s
▌Show S II at z=vexp= km/s
▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
▌Show Fe III at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Tellurics 
▌Show Galaxy lines at z=
▌Show WR-WN at z=vexp= km/s
▌Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌LAST_LAST-Cam_Clear
 ▌GOTO-N_GOTO-2_L
 ▌PS2_GPC2_w
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌ATLAS-HKO_ATLAS-02_cyan
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
 ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
21561 2025-07-17 06:27:36 ESO-NTT / EFOSC2-NTT 2700 G. Csoernyei G. Csoernyei None tns_2025lzu_2025-07-17_06-27-36.347_ESO-NTT_EFOSC2-NTT_None.asci tns_2025lzu_2025-07-17_06-27-36.347_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum
21192 2025-05-30 08:41:24 ESO-NTT / EFOSC2-NTT 900 Stefano Pio Cosentino, Callum Francis Aster Amar Aryan, Yu-Hsing Lee, Cheng-Han Lai, Ting-Wan Chen ePESSTO+ tns_2025lzu_2025-05-30_08-41-24_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lzu_2025-05-30_08-41-24_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-07-05 22:43:04 - 2025-05-28 23:36:30 2460497.44657 - 2460824.48368 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492474 2025-05-28 23:36:30 2460824.48368 19.07 ABMag Clear- LAST_LAST-Cam 400
492473 2024-07-05 22:43:04 2460497.44657 21.69 ABMag Clear- LAST_LAST-Cam 6380 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-05-23 03:59:47 - 2025-05-25 03:39:14 2460818.666525 - 2460820.652249 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492810 2025-05-25 03:39:14 2460820.652249 19.26 0.17 ABMag L-GOTO GOTO-N_GOTO-2 135
492809 2025-05-23 03:59:47 2460818.666525 19.7 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
w-P1 PS2_GPC2 2025-05-30 13:04:41 - 2025-05-30 13:04:41 2460826.04492 - 2460826.04492 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495180 2025-05-30 13:04:41 2460826.04492 18.8 0.02 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-05-24 08:15:45 - 2025-05-24 08:15:45 2460819.84427 - 2460819.84427 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491526 2025-05-24 08:15:45 2460819.84427 19.22 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-05-25 13:35:39 - 2025-05-25 13:35:39 2460821.06642 - 2460821.06642 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491527 2025-05-25 13:35:39 2460821.06642 18.997 0.12 19.5 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
258545 2025-06-14 19:52:15 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 21:39:55.024 +06:00:12.08 2025-05-30 13:04:41.088 18.8 w-P1 PSN PS25dim Pan-STARRS N
257328 2025-05-30 08:58:36 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 21:39:55.033 +06:00:11.55 2025-05-25 03:39:14.400 19.26 L-GOTO Other GOTO25deo GOTO N
257191 2025-05-29 04:09:07 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 21:39:54.996 +06:00:12.60 2025-05-28 23:36:29.952 19.07 Clear- PSN LAST N
256729 2025-05-25 20:49:44 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:39:55.025 +06:00:11.66 2025-05-25 13:35:38.688 18.997 cyan-ATLAS PSN ATLAS25fob ATLAS 2025TNSTR1950....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21561 2025-07-18 15:03:47 Geza Csornyei G. Csoernyei, M. Mirabile, M. Vioque (ESO), G. Fernandes Goncalves (Federal University of Technology), L. Hauer (University of Vienna), P. M. Lequizamon Pineda (Università degli Studi di Padova), A. Moore (University College Cork), E. Nilson (Lund University), A. Pisapia (INAF-OAS), J. Willingham (Macquarie University) None SN II 0.063 1 The spectrum shows a developed and broad P Cygni feature of hydrogen, indicating this is a Type II supernova. The previous spectrum of this object was featureless. The redshift is based on the narrow host galaxy H alpha line seen in the spectrum. 2025TNSCR2762....1C
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
21561 2025-07-17 06:27:36 ESO-NTT / EFOSC2-NTT 2700 G. Csoernyei G. Csoernyei None tns_2025lzu_2025-07-17_06-27-36.347_ESO-NTT_EFOSC2-NTT_None.asci tns_2025lzu_2025-07-17_06-27-36.347_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum
21192 2025-05-30 18:09:09 ePESSTOplus_Bot1 Stefano Pio Cosentino, Callum Francis Aster, Amar Aryan, Yu-Hsing Lee, Cheng-Han Lai, Ting-Wan Chen, Ofer Yaron on behalf of ePESSTO+ ePESSTO+ SN 0 1 ePESSTO+ 2025TNSCR2039....1C
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
21192 2025-05-30 08:41:24 ESO-NTT / EFOSC2-NTT 900 Stefano Pio Cosentino, Callum Francis Aster Amar Aryan, Yu-Hsing Lee, Cheng-Han Lai, Ting-Wan Chen ePESSTO+ tns_2025lzu_2025-05-30_08-41-24_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lzu_2025-05-30_08-41-24_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Sat, 06/14/2025 - 19:52

Object coordinates updated

Object coordinates updated according to AT-report 258545 of Group Pan-STARRS
Previous RA, DEC: 21:39:55.025, +06:00:11.66 (324.979272857, +6.00324)
Updated RA, DEC: 21:39:55.024, +06:00:12.08 (324.979265899, +6.00335658141)