TNS Astronomical Transient Report No. 241964 [ 2025TNSTR.289....1T ]

Date Received (UTC): 2025-01-21 08:47:29
Date made public:
Sender: MASTER
Reporting Group: MASTER     Discovery Data Source: MASTER

N.Tiurina, V.Lipunov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, , D.Vlasenko, I.Panchenko, A.Kuznetsov, G.Antipov, A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, 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. 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: AT 2025yl
Discoverer internal name: MASTER OT J103147.97+085224.6
Coordinates (J2000): RA = 10:31:47.970 (157.949875) DEC = +08:52:24.60 (8.8735)
Discovery date: 2025-01-20 07:09:21.888 (JD=2460695.79817)


Remarks: CV current outburst with ampl>4m(against 19.7m at 2021-01-24 06:38:55)

Photometry

Discovery (first detection):
Discovery date: 2025-01-20 07:09:21.888
Flux: 15.7 VegaMag
Filter: Other-
Instrument: Other
Telescope: Other

Remarks: MASTER-OAFA

Last non-detection:
Last non-detection date: 2017-12-25 05:40:41
Limiting flux: 19.6 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/2025yl