Discovery certificate for object 2019msb
TNS Astronomical Transient Report No. 43251 [ 2019TNSTR1412....1M ]

Date Received (UTC): 2019-08-05 23:03:26
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

P. Marples, J. Brimacombe, K. Z. Stanek, Z. Way, C. S. Kochanek, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019msb
Discoverer internal name: ASASSN-19td
Coordinates (J2000): RA = 13:23:06.694 (200.77789) DEC = -42:57:58.14 (-42.96615)
Discovery date: 2019-08-01 17:34:04 (JD=2458697.2319907)


Remarks: Present in multiple epochs, no clear match in Vizier, so it might be a supernova or a Galactic CV, unusual light curve; confirmed via follow-up imaging

Photometry

Discovery (first detection):
Discovery date: 2019-08-01 17:34:04
Flux: 17.3 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2019-07-26 19:36:28
Limiting flux: 18.4 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019msb