TNS Astronomical Transient Report No. 266528 [ 2025TNSTR3263....1R ]

Date Received (UTC): 2025-08-18 17:00:39
Date made public:
Sender: ZTF_CATS150
Reporting Group: ZTF     Discovery Data Source: ZTF

Nabeel Rehemtulla (CIERA, NU), Kaustav Kashyap Das (Caltech), Mansi Kasliwal (Caltech), Theophile Du Laz (Caltech) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: SN 2025umb
Discoverer internal name: ZTF25abjmidx
Coordinates (J2000): RA = 12:23:08.037 (185.7834857) DEC = +31:03:07.76 (31.0521559)
Discovery date: 2025-08-14 03:40:20.997 (JD=2460901.6530208)



Photometry

Discovery (first detection):
Discovery date: 2025-08-14 03:40:20.997
Flux: 18.961 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-07-25 04:58:25
Limiting flux: 19.9135 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


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