RA/DEC (2000)
18:47:40.504 -63:09:39.50
281.918767 -63.160972
Type
SN IIn
Redshift
0.015
Discovery ReportClassification Report
Related AstroNotes: 2025-256, 2025-254
Reporting Group
BlackGEM
Discovering Data Source
BlackGEM
Discovery Date
2025-08-12 00:34:44.000
TNS AT
Y
Public
Y
Discovery Mag
19.25
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_2025tpu - 2025-08-13 02:11:06 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

 ▌GOTO-S_GOTO-4_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌Other_Other_Other
   
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
21784 2025-08-13 02:11:06 ESO-NTT / EFOSC2-NTT 1200 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter, Morgan Fraser ePESSTO+ tns_2025tpu_2025-08-13_02-11-06_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025tpu_2025-08-13_02-11-06_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-07-16 13:16:55 - 2025-08-23 11:51:22 2460873.053408 - 2460910.994004 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511743 2025-08-23 11:51:22 2460910.994004 16.73 0.01 ABMag L-GOTO GOTO-S_GOTO-4 180
511742 2025-07-16 13:16:55 2460873.053408 19.7 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-08-09 01:36:21 - 2025-08-09 01:36:21 2460896.56691 - 2460896.56691 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508317 2025-08-09 01:36:21 2460896.56691 18.15 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-08-12 22:29:35 - 2025-08-12 22:29:35 2460900.43721 - 2460900.43721 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508318 2025-08-12 22:29:35 2460900.43721 18.55 0.077 19.83 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 110 Robot
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-08-12 00:34:44 - 2025-08-12 00:34:44 2460899.5241204 - 2460899.5241204 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508203 2025-08-12 00:34:44 2460899.5241204 19.25 0.07 21.05 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-08-11 03:36:42 - 2025-08-11 03:36:42 2460898.6504861 - 2460898.6504861 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508202 2025-08-11 03:36:42 2460898.6504861 19.94 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic [Last non detection]
Other- Other_Other 2025-05-25 07:28:26 - 2025-09-07 23:34:19 2460820.81141 - 2460926.48216 6
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516104 2025-09-07 23:34:19 2460926.48216 15.9 18 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
516236 2025-09-07 23:34:19 2460926.48216 15.7 18 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
516103 2025-09-07 23:33:01 2460926.48126 15.9 18.3 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
516235 2025-09-07 23:31:45 2460926.48038 15.7 17.6 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
516234 2025-06-05 05:12:14 2460831.71683 19.8 VegaMag Other- Other_Other 60 Robot [Last non detection] MASTER-OAFA
516102 2025-05-25 07:28:26 2460820.81141 19.8 VegaMag Other- Other_Other 60 Robot [Last non detection] MASTER-OAFA
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
269588 2025-09-09 16:47:43 MASTER M.Shilova,V.Lipunov,E.Gorbovskoy et al. MASTER MASTER 18:47:40.640 -63:09:39.30 2025-09-07 23:31:44.832 15.7 Other- PSN MASTER OT J184740.64-630939.3 MASTER unfiltered N
269517 2025-09-08 13:41:30 MASTER A.Chasovnikov,V.Lipunov,E.Gorbovskoy et al. MASTER MASTER 18:47:40.600 -63:09:39.00 2025-09-07 23:33:00.864 15.9 Other- PSN MASTER OT J184740.60-630939.0 MASTER N
267350 2025-08-23 15:52:27 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 18:47:40.547 -63:09:39.01 2025-08-23 11:51:21.600 16.73 L-GOTO Other GOTO25ger GOTO N
265591 2025-08-13 01:14:50 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 18:47:40.574 -63:09:39.26 2025-08-12 22:29:34.944 18.55 orange-ATLAS PSN ATLAS25jhf ATLAS N
265529 2025-08-12 08:40:19 BlackGEM_Bot1 P. Groot,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 18:47:40.504 -63:09:39.50 2025-08-12 00:34:44.000 19.25 BG-q-BlackGem 1 PSN BGEM J184740.50-630939.4 BlackGEM 2025TNSTR3159....1G N
Related files
File Comments Last Modified (UT) Modified By
tns_2025tpu_atrep_265529_BlackGEM.pdf Finding Chart 2025-08-12 08:42:05 BlackGEM_Bot1
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21784 2025-08-14 06:37:57 ePESSTOplus_Bot1 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani, Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter, Morgan Fraser, E. A. Zimmerman on behalf of ePESSTO+ ePESSTO+ SN IIn 0.015 1 ePESSTO+ 2025TNSCR3202....1v
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
21784 2025-08-13 02:11:06 ESO-NTT / EFOSC2-NTT 1200 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter, Morgan Fraser ePESSTO+ tns_2025tpu_2025-08-13_02-11-06_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025tpu_2025-08-13_02-11-06_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments