RA/DEC (2000)
18:12:54.411 +11:22:56.95
273.226713 +11.382486
Type
SN Ia
Redshift
0.0856
Discovery ReportClassification Report
Related AstroNotes: 2026-134
Reporting Group
BlackGEM
Discovering Data Source
BlackGEM
Discovery Date
2026-04-28 06:03:59.000
TNS AT
Y
Public
Y
Discovery Mag
19.73
Filter
BG-q-BlackGem
Reporter/s
P. Groot, H. Tranin, F. Stoppa, D. Pieterse, G. Ramsay, S. Faris, P. Vreeswijk, N. Blagorodnova, J. van Roestel, H. Wichern, S. Scaringi
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026kyu - 2026-06-01 09:35:04 P200 / NGPS (ZTF)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

 ▌GOTO-S_GOTO-3_L
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌P48_ZTF-Cam_r
   
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
23924 2026-06-01 09:35:04 P200 / NGPS K-Ryan Hinds K-Ryan Hinds ZTF tns_2026kyu_2026-06-01_09-35-04_P200_NGPS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2026-04-25 17:06:55 - 2026-04-26 16:23:32 2461156.213138 - 2461157.183008 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
581291 2026-04-26 16:23:32 2461157.183008 19.94 0.19 ABMag L-GOTO GOTO-S_GOTO-3 180
581290 2026-04-25 17:06:55 2461156.213138 20.1 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
BG-q-BlackGem BG3_BlackGEM-Cam3 2026-03-24 09:32:24 - 2026-04-28 06:03:59 2461123.8975 - 2461158.7527662 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578599 2026-04-28 06:03:59 2461158.7527662 19.73 0.18 19.74 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
578598 2026-03-24 09:32:24 2461123.8975 20.45 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2026-04-21 09:41:30 - 2026-05-09 11:28:00 2461151.9038194 - 2461169.9777778 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580582 2026-05-09 11:28:00 2461169.9777778 19.6825 0.133507 ABMag r-ZTF P48_ZTF-Cam
580581 2026-04-23 09:53:02 2461153.9118287 20.5781 0.143612 ABMag r-ZTF P48_ZTF-Cam
580580 2026-04-21 09:41:30 2461151.9038194 20.5853 ABMag r-ZTF P48_ZTF-Cam [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
303133 2026-05-11 09:56:01 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 18:12:54.431 +11:22:56.86 2026-04-26 16:23:32.064 19.94 L-GOTO Other GOTO26ent GOTO N
302783 2026-05-09 16:27:07 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 18:12:54.436 +11:22:57.03 2026-04-23 09:53:01.999 20.5781 r-ZTF PSN ZTF26aaveymb ZTF N
301813 2026-04-28 10:09:02 BlackGEM_Bot1 P. Groot, H. Tranin, F. Stoppa et al. BlackGEM BlackGEM 18:12:54.411 +11:22:56.95 2026-04-28 06:03:59.000 19.73 BG-q-BlackGem PSN BGEM J181254.41+112256.9 BlackGEM 2026TNSTR1851....1G N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23920 2026-06-03 16:55:29 ZTF_Bot1 K. Hinds, C. Fremling, J. Castaneda Jaimes, T. du Laz, T. Culino, M. Kasliwal (Caltech), and M. Coughlin (UoM) on behalf of the ZTF LIONS collaboration ZTF SN Ia 0.0856 1 ZTF
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
23924 2026-06-01 09:35:04 P200 / NGPS K-Ryan Hinds K-Ryan Hinds ZTF tns_2026kyu_2026-06-01_09-35-04_P200_NGPS_ZTF.ascii Object

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