TNS Astronomical Transient Report No. 270773 [ 2025TNSTR3781....1X ]

Date Received (UTC): 2025-09-20 13:04:09
Date made public:
Sender: WFST_SN
Reporting Group: WFST     Discovery Data Source: WFST

Zelin Xu, Dezheng Meng, Ji-an Jiang, Weiyu Wu, Zhengyan Liu, Junhan Zhao, Ziqing Jia (USTC) on behalf of the WFST collaboration report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025ybw
Discoverer internal name: WFST250917qilr
Coordinates (J2000): RA = 02:23:51.130 (35.963042) DEC = +03:31:52.28 (3.531189)
Discovery date: 2025-09-19 19:16:19.200 (JD=2460938.303)



Photometry

Discovery (first detection):
Discovery date: 2025-09-19 19:16:19.200
Flux: 20.38 ABMag
Filter: g-WFST
Instrument: WFST-WFC
Telescope: Wide Field Survey Telescope

Last non-detection:
Last non-detection date: 2025-09-18 22:01:55
Limiting flux: 22.1 ABMag
Filter: r-WFST
Instrument: WFST-WFC
Telescope: Wide Field Survey Telescope


Details of the new object can be viewed here: https://www.wis-tns.org/object/2025ybw