2026bbl | Transient Name Server

RA/DEC (2000)

10:02:11.842 +02:37:36.80

150.549343 +2.626888

Type

SN II

Redshift

0.1139

Discovery Report Classification Report

Related AstroNotes: 2026-81

Reporting Group

Pan-STARRS

Discovering Data Source

Pan-STARRS

Discovery Date

2026-01-20 11:53:31.200

TNS AT

Y

Public

Y

Discovery Mag

22.61

Filter

g-P1

Reporter/s

K. C. Chambers, T. de Boer, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, G. Paek, A. Schultz, I. A. Smith, R. J. Wainscoat (IfA, University of Hawaii), S. J. Smartt, K. W. Smith (University of Oxford / Queen's University Belfast), S. Srivastav (University of Oxford), D. R. Young, M. Fulton, M. Nicholl, T. Moore, J. Weston, C. R. Angus, A. J. Smith (Queen's University Belfast)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

Rubin_LSSTCam_y

▌

CTIO-4m_DECAM_i

▌

PS1_GPC1_g

Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)

Spectra

Select	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
	23100	2026-02-26 08:01:33	Mayall / DESI	475.18	DESI		DESI	tns_2026bbl_2026-02-26_08-01-33.275000_Mayall_DESI_DESI.ascii		Object			Spectrum shows clear P Cygni H-alpha feature.
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s Remarks Spectrum shows clear P Cygni H-alpha feature.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

y-LSST

Rubin_LSSTCam

2026-01-28 06:40:19 - 2026-01-28 06:40:19

2461068.778 - 2461068.778

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
561390	2026-01-28 06:40:19	2461068.778	21.06	0.15		ABMag	y-LSST	Rubin_LSSTCam

i-Sloan

CTIO-4m_DECAM

2026-01-11 08:25:01 - 2026-01-11 08:25:01

2461051.8507132 - 2461051.8507132

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
557528	2026-01-11 08:25:01	2461051.8507132	21.1735	0.0952412		ABMag	i-Sloan	CTIO-4m_DECAM

g-P1

PS1_GPC1

2026-01-20 11:53:31 - 2026-01-20 11:53:31

2461060.9955 - 2461060.9955

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
552939	2026-01-20 11:53:31	2461060.9955	22.61	0.27	21	ABMag	g-P1	PS1_GPC1	904	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
292862	2026-02-25 02:34:57	K-Ryan Hinds	Mansi Kasliwal (Caltech), Michael Coughlin (UMN), Theophile Jegou du Laz (Caltech) et al.	ZTF	Rubin	10:02:11.842	+02:37:36.80	2026-02-06 00:00:00.000	21.06	y-LSST		PSN		LSST-P-DO-313853517428162578	Rubin, ZTF		Found using Babamul (https://babamul.caltech.edu). BOOM/Babamul is funded by the National Science Foundation under award # 2432476.		N
290820	2026-02-10 20:45:31	DESIRT_Bot	Xander J. Hall (Carnegie Mellon U.), Lei Hu (Carnegie Mellon U.), Antonella Palmese (Carnegie Mellon U.) et al.	DESIRT	DESIRT	10:02:11.844	+02:37:36.89	2026-01-11 08:25:01.344	21.1735	i-Sloan		PSN		C202511241002118p023737	DESIRT		Discovered in a joint DESIRT/YSE Field		N
288465	2026-01-22 23:43:23	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	10:02:11.830	+02:37:36.76	2026-01-20 11:53:31.200	22.61	g-P1		PSN		PS26jl	Pan-STARRS			2026TNSTR.291....1C	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

23099

2026-02-26 23:30:32

Xander Hall

Xander Hall (CMU), John Banovez (LBNL), Antonella Palmese (CMU), Stephen Bailey (LBNL), Segev BenZvi (U Rochester), Dylan Green (LBNL), Adam Myers (U of Wyoming), David Schlegel (LBNL), on behalf of the DESI Collaboration

DESI

SN II

0.1139

1

DESI

Classified as part of the DESI Transients Survey (DTS; Hall et al. 2026)

2026TNSCR.849....1H

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
23100	2026-02-26 08:01:33	Mayall / DESI	475.18	DESI		DESI	tns_2026bbl_2026-02-26_08-01-33.275000_Mayall_DESI_DESI.ascii		Object			Spectrum shows clear P Cygni H-alpha feature.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 292862 of Group Rubin
Previous RA, DEC: 10:02:11.830, +02:37:36.76 (150.54929095, +2.62687808079)
Updated RA, DEC: 10:02:11.842, +02:37:36.80 (150.549343, +2.626888)

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