2025adje | Transient Name Server

RA/DEC (2000)

13:28:48.658 +38:44:47.39

202.2027416 +38.746496

Type

SN II

Redshift

0.00796

Discovery Report Classification Report

Related AstroNotes: 2025-324

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2025-11-14 12:14:24.000

TNS AT

Y

Public

Y

Host Name

WISEA J132849.14+384442.4

Discovery Mag

14.7

Filter

g-Sloan

Reporter/s

K. Z. Stanek, for the ASAS-SN team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

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
	22435	2025-11-18 00:00:00	NOT / ALFOSC	600	Laura Fuglsang	Niko Pyykkinen	None	tns_2025adje_2025-11-18_NOT_ALFOSC_None.dat	tns_2025adje_2025-11-18_NOT_ALFOSC_None.fits	Object			The blue end of the spectrum <5000 Å is unreliable due to data reduction difficulties.
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 The blue end of the spectrum <5000 Å is unreliable due to data reduction difficulties.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

Clear-

LAST_LAST-Cam

2024-03-04 00:23:15 - 2026-01-19 01:25:29

2460373.51615 - 2461059.55936

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
551466	2026-01-19 01:25:29	2461059.55936	16.38			ABMag	Clear-	LAST_LAST-Cam	400
551465	2024-03-04 00:23:15	2460373.51615			21.81	ABMag	Clear-	LAST_LAST-Cam	3100		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-12-04 06:10:17 - 2025-12-04 06:10:17

2461013.757144 - 2461013.757144

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
535916	2025-12-04 06:10:17	2461013.757144	15.1	0.01		ABMag	L-GOTO	GOTO-N_GOTO-2	180

L-GOTO

GOTO-N_GOTO-1

2025-08-16 20:48:51 - 2025-08-16 20:48:51

2460904.36726 - 2460904.36726

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
535915	2025-08-16 20:48:51	2460904.36726			19.2	ABMag	L-GOTO	GOTO-N_GOTO-1	360		[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-11-23 12:52:19 - 2025-11-23 12:52:19

2461003.036331 - 2461003.036331

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
533280	2025-11-23 12:52:19	2461003.036331	14.7683	0.0217997		ABMag	g-ZTF	P48_ZTF-Cam

g-Sloan

ASASSN-4_Leavitt

2025-08-15 00:00:00 - 2025-11-14 12:14:24

2460902.5 - 2460994.01

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
531022	2025-11-14 12:14:24	2460994.01	14.7			ABMag	g-Sloan	ASASSN-4_Leavitt
531021	2025-08-15 00:00:00	2460902.5			17.2	ABMag	g-Sloan	ASASSN-4_Leavitt			[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-08-19 06:26:24 - 2025-08-19 06:26:24

2460906.76833 - 2460906.76833

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
533787	2025-08-19 06:26:24	2460906.76833			19.8	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	110	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2025-11-25 15:10:58 - 2025-11-25 15:10:58

2461005.13262 - 2461005.13262

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
533788	2025-11-25 15:10:58	2461005.13262	14.877	0.007	19.38	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
287844	2026-01-19 05:11:03	LAST_Bot1	E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al.	LAST	LAST	13:28:48.673	+38:44:46.76	2026-01-19 01:25:28.704	16.38	Clear-		PSN			LAST				N
279302	2025-12-04 06:57:06	GOTO_bot	D. O'Neill,K. Ackley,M. Dyer et al.	GOTO	GOTO	13:28:48.678	+38:44:47.35	2025-12-04 06:10:16.896	15.1	L-GOTO		Other		GOTO25lal	GOTO				N
278258	2025-11-25 18:56:59	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland (IfA et al.	ATLAS	ATLAS	13:28:48.658	+38:44:47.44	2025-11-25 15:10:58.368	14.877	cyan-ATLAS		PSN		ATLAS25owo	ATLAS				N
278028	2025-11-23 16:50:25	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	13:28:48.658	+38:44:47.39	2025-11-23 12:52:18.998	14.7683	g-ZTF		PSN		ZTF25acegldm	ZTF				N
276728	2025-11-14 22:07:21	Krzysztof Stanek	K. Z. Stanek,for the ASAS-SN team et al.	ASAS-SN	ASAS-SN	13:28:48.718	+38:44:48.12	2025-11-14 12:14:24.000	14.7	g-Sloan		PSN	WISEA J132849.14+384442.4	ASASSN-25et	ASAS-SN		Present in two epochs, unknown redshift host galaxy, discovered after seasonal break	2025TNSTR4569....1S	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22434

2025-11-20 09:14:34

Niko Pyykkinen

Niko Pyykkinen (UTU/NOT), Takashi Nagao (NAOJ/UTU), Hanindyo Kuncarayakti (UTU)

None

SN II

0.00796

1

The spectral features match those of a young Type II SN at low redshift. We report the redshift stated in the Astronote (Berdayes et al.), originally determined by the FAST all sky H I survey (FASHI) Zhang et al. 2024. Follow-up observations are encouraged.

2025TNSCR4664....1P

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
22435	2025-11-18 00:00:00	NOT / ALFOSC	600	Laura Fuglsang	Niko Pyykkinen	None	tns_2025adje_2025-11-18_NOT_ALFOSC_None.dat	tns_2025adje_2025-11-18_NOT_ALFOSC_None.fits	Object			The blue end of the spectrum <5000 Å is unreliable due to data reduction difficulties.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 278028 of Group ZTF
Previous RA, DEC: 13:28:48.718, +38:44:48.12 (202.20299, +38.7467)
Updated RA, DEC: 13:28:48.658, +38:44:47.39 (202.2027416, +38.746496)

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