TNS Astronomical Transient Report No. 60328 [ 2020TNSTR.298....1G ]

Date Received (UTC): 2020-01-28 13:35:50
Date made public:
Sender: Mi Zhang
Reporting Group: XOSS     Discovery Data Source: XOSS

Mi Zhang and Xing Gao report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020ber
Discoverer internal name: XM24MZ
Coordinates (J2000): RA = 00:42:52.320 (10.718) DEC = +41:16:12.80 (41.270222)
Discovery date: 2020-01-28 13:04:09.000 (JD=2458877.0445486)

Potential host galaxy: M31

Remarks: Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 17.0) on several 300-s survey images (limiting mag about 20.0) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Jan. 28.54455 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=00h42m52.32s +41d16'12".8 (equinox 2000.0). Which is about 90.2" east and 4.3" north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Jan. 27.67588 UT(limiting mag 19.0). It was suspected the recurrent nova RN M31N 1926-07c. NET UCAC-4 XM24MZ C2020 01 28.54455 00 42 52.32 +41 16 12.8 17.0R C42 All images can be seen from: http://xjltp.china-vo.org/XM24MZ.html C42,Xingming Observatory - NEXT, Mt. Nanshan. Observers M.Zhang,X.Gao,Measurers M.Zhang, 0.6-m f/8 Ritchey-Chretien telescope and CCD.

Photometry

Discovery (first detection):
Discovery date: 2020-01-28 13:04:09.000
Flux: 17 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 17.0) on several 300-s survey images (limiting mag about 20.0) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Jan. 28.54455 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=00h42m52.32s +41d16'12".8 (equinox 2000.0). Which is about 90.2" east and 4.3" north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Jan. 27.67588 UT(limiting mag 19.0). It was suspected the recurrent nova RN M31N 1926-07c. NET UCAC-4 XM24MZ C2020 01 28.54455 00 42 52.32 +41 16 12.8 17.0R C42 All images can be seen from: http://xjltp.china-vo.org/XM24MZ.html C42,Xingming Observatory - NEXT, Mt. Nanshan. Observers M.Zhang,X.Gao,Measurers M.Zhang, 0.6-m f/8 Ritchey-Chretien telescope and CCD.

Last non-detection:
Last non-detection date: 2020-01-27 16:13:16
Limiting flux: 19 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ).

Details of the new object can be viewed here: https://www.wis-tns.org/object/2020ber