TNS Astronomical Transient Report No. 293455 [ 2026TNSTR.878....1K ]
Date Received (UTC): 2026-03-01 22:30:57
Date made public:
Sender: MASTER
Reporting Group: MASTER Discovery Data Source: MASTER
V.Kuzmina, V.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, G.Antipov, A.Sankovich, Yu.Tselik, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU), O.Gress, N.Budnev (ISU), C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A.Sosnovskij (CrAO), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity), D.Buckley (SAAO), R.Rebolo (The Instituto de Astrofisica de Canarias), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) report/s the discovery of a new astronomical transient.
IAU Designation: SN 2026etm
Discoverer internal name: MASTER OT J133745.23-212551.2
Coordinates (J2000): RA = 13:37:45.230 (204.438458) DEC = -21:25:51.20 (-21.430889)
Discovery date: 2026-03-01 07:26:55.104 (JD=2461100.81036)
Remarks: new OT, PanSTARR 24mag in history limit means >~4.7m current outburst ampl, also presents at MASTER images at 19feb with m~20.2
Photometry
Discovery (first detection):
Discovery date: 2026-03-01 07:26:55.104
Flux: 19.3 VegaMag
Filter: Other-
Instrument: Other
Telescope: Other
Remarks: MASTER-OAFA
Last non-detection:
Last non-detection date: 2025-04-05 05:09:56
Limiting flux: 21 VegaMag
Filter: Other-
Instrument: Other
Telescope: Other
Remarks: MASTER-OAFA
Archival info: Other
Remarks: MASTER
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026etm
Date Received (UTC): 2026-03-01 22:30:57
Date made public:
Sender: MASTER
Reporting Group: MASTER Discovery Data Source: MASTER
V.Kuzmina, V.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, G.Antipov, A.Sankovich, Yu.Tselik, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU), O.Gress, N.Budnev (ISU), C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A.Sosnovskij (CrAO), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity), D.Buckley (SAAO), R.Rebolo (The Instituto de Astrofisica de Canarias), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) report/s the discovery of a new astronomical transient.
IAU Designation: SN 2026etm
Discoverer internal name: MASTER OT J133745.23-212551.2
Coordinates (J2000): RA = 13:37:45.230 (204.438458) DEC = -21:25:51.20 (-21.430889)
Discovery date: 2026-03-01 07:26:55.104 (JD=2461100.81036)
Remarks: new OT, PanSTARR 24mag in history limit means >~4.7m current outburst ampl, also presents at MASTER images at 19feb with m~20.2
Photometry
Discovery (first detection):
Discovery date: 2026-03-01 07:26:55.104
Flux: 19.3 VegaMag
Filter: Other-
Instrument: Other
Telescope: Other
Remarks: MASTER-OAFA
Last non-detection:
Last non-detection date: 2025-04-05 05:09:56
Limiting flux: 21 VegaMag
Filter: Other-
Instrument: Other
Telescope: Other
Remarks: MASTER-OAFA
Archival info: Other
Remarks: MASTER
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026etm