RA/DEC (2000)
20:51:49.473 +06:25:06.77
312.956136062 +6.41854789365
Type
SN IIn
Redshift
0.05
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-07-15 00:31:37.344
TNS AT
Y
Public
Y
Host Name
PGC065581
Comments
[Object cross-matched with PGC065581]
Discovery Mag
20.3
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, R. Starling, B. Gompertz, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026vhw - 2026-08-17 23:30:09 LT / SPRAT (GOTO)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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_w
   
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
24522 2026-08-17 23:30:09 LT / SPRAT J. Lyman, D. O'Neill, M. Pursiainen GOTO tns_2026vhw_2461270.479266_LT_SPRAT_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-1 2026-07-13 00:39:59 - 2026-07-15 00:31:37 2461234.527768 - 2461236.521962 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
605823 2026-07-15 00:31:37 2461236.521962 20.3 0.21 ABMag L-GOTO GOTO-N_GOTO-1 180
605822 2026-07-13 00:39:59 2461234.527768 20.4 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2026-07-24 07:58:15 - 2026-09-20 06:17:24 2461245.8321181 - 2461303.7620833 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
620604 2026-09-20 06:17:24 2461303.7620833 17.4806 0.048336 ABMag g-ZTF P48_ZTF-Cam
620603 2026-07-24 07:58:15 2461245.8321181 19.4938 0.136389 ABMag g-ZTF P48_ZTF-Cam
w-P1 PS1_GPC1 2026-07-23 10:22:13 - 2026-07-23 10:22:13 2461244.93209 - 2461244.93209 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
608103 2026-07-23 10:22:13 2461244.93209 19.35 0.02 22 ABMag w-P1 PS1_GPC1 45 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
324355 2026-09-20 12:41:56 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 20:51:49.471 +06:25:06.87 2026-07-24 07:58:15.003 19.4938 g-ZTF PSN ZTF26abjlzzg ZTF N
317518 2026-08-01 17:41:46 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 20:51:49.473 +06:25:06.77 2026-07-23 10:22:12.576 19.35 w-P1 PSN PS26fwg Pan-STARRS N
316195 2026-07-21 16:09:16 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 20:51:49.478 +06:25:06.52 2026-07-15 00:31:37.344 20.3 L-GOTO Other GOTO26hej GOTO 2026TNSTR2992....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24515 2026-08-18 11:50:23 GOTO_bot J. Lyman, M. Pursiainen, D. O'Neill, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, R. Starling, B. Gompertz, B. Godson, T. Killestein, A. Kumar, on behalf of GOTO collaboration GOTO SN IIn 0.05 1 GOTO Spectrum shows strong narrow Balmer lines characteristic of SN IIn along with some host lines of [S II]. We note the object has been rising for approximately 40d and appears to now be reaching a peak magnitude of m_L = 17.8mag (M_L = -19 mag) 2026TNSCR3372....1L
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
24522 2026-08-17 23:30:09 LT / SPRAT J. Lyman, D. O'Neill, M. Pursiainen GOTO tns_2026vhw_2461270.479266_LT_SPRAT_GOTO.dat Object

Comments

TNS
System

Sat, 08/01/2026 - 17:41

Object coordinates updated

Object coordinates updated according to AT-report 317518 of Group Pan-STARRS
Previous RA, DEC: 20:51:49.478, +06:25:06.52 (312.95616, +6.418477)
Updated RA, DEC: 20:51:49.473, +06:25:06.77 (312.956136062, +6.41854789365)