RA/DEC (2000)
15:52:06.712 +21:26:48.53
238.027966 +21.446814
Type
SN II
Redshift
0.047
Related AstroNotes: 2025-157
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-23 10:16:45.984
TNS AT
Y
Public
Y
Discovery Mag
19.459
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)

Spectra

 SN_2025lmb - 2025-05-26 04:37:25 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

 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
21145 2025-05-26 04:37:25 ESO-NTT / EFOSC2-NTT 2000 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lmb_2025-05-26_04-37-25_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lmb_2025-05-26_04-37-25_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-05-22 11:25:44 - 2025-05-23 10:16:46 2460817.9762 - 2460818.92831 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
490592 2025-05-23 10:16:46 2460818.92831 19.459 0.184 19.63 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
490591 2025-05-22 11:25:44 2460817.9762 19.63 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
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
256153 2025-05-23 18:40:46 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 15:52:06.712 +21:26:48.53 2025-05-23 10:16:45.984 19.459 cyan-ATLAS PSN ATLAS25fhk ATLAS 2025TNSTR1912....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
21145 2025-05-26 16:54:26 ePESSTOplus_Bot1 Callum Francis Aster, Stefano Pio Cosentino, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN II 0.047 1 ePESSTO+ 2025TNSCR1978....1A
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
21145 2025-05-26 04:37:25 ESO-NTT / EFOSC2-NTT 2000 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai ePESSTO+ tns_2025lmb_2025-05-26_04-37-25_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025lmb_2025-05-26_04-37-25_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments