TNS Astronomical Transient Report No. 140016 [ 2022TNSTR.671....1C ]

Date Received (UTC): 2022-03-10 19:15:27
Date made public:
Sender: Raffaele Belligoli
Reporting Group: ISSP     Discovery Data Source: ISSP

Flavio Castellani report/s the discovery of a new astronomical transient.

IAU Designation: AT 2022eqj
Discoverer internal name: OMB-PNV16
Coordinates (J2000): RA = 00:43:04.060 (10.766917) DEC = +41:17:08.00 (41.285556)
Discovery date: 2022-03-10 18:07:26.000 (JD=2459649.255162)

Potential host galaxy: M31

Remarks: F.Castellani, R.Belligoli, V.Andreoli, C.Marangoni, OMB extragalactic nova monitoring with ISSP collaboration, reports the discovery of a probable nova in M31. The coordinates of the new transient are only 0.5 arc/sec from Nova Bryan 1990A/M31N2007-07a The transient designated also PNV PNV J00430406+4117080

Photometry

Discovery (first detection):
Discovery date: 2022-03-10 18:07:26.000
Flux: 16.5 STMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: New transient was clearly detected on '2022-03-10.7550' UT using 16 x 300s frames (4800s total) obtained by a Moravian G4-9000 KAF unfiltered CCD with the 0.4m f.8 Ritchey-Chrétien telescope from Monte Baldo "A.Gelodi" Astronomic Observatory, località Novezzina, Ferrara di Monte Baldo, Verona, Italy. The discovery magnitude is 16.5±0.5 mag in the CV band (clear visual). We will continue to monitor the nova light curve and strongly encourage additional follow-up observations.

Last non-detection:
Last non-detection date: 2022-03-09 18:38:42
Limiting flux: 19 STMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Last non-detected image on '2022-03-09 18:38:42' UT using 16x 300s frames (4800s total) was obtained by a Moravian G4-9000 KAF unfiltered CCD with the 0.4m f.8 Ritchey-Chrétien

Archival info: DSS
Remarks: No stellar source is visible at the transient's position in our past images and ALADIN sky atlas. No variable star is present at these coordinates on the SIMBAD database.

Details of the new object can be viewed here: https://www.wis-tns.org/object/2022eqj