TNS Astronomical Transient Report No. 60215 [ 2020TNSTR.282....1G ]
Date Received (UTC): 2020-01-27 12:31:10
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 2020bcg
Discoverer internal name: XM23MZ
Coordinates (J2000): RA = 01:34:01.200 (23.505) DEC = +30:28:37.20 (30.477)
Discovery date: 2020-01-26 13:34:27.000 (JD=2458875.0655903)
Potential host galaxy: M33
Remarks: Mi Zhang and Xing Gao, report the outburst of a variable star candidate (mag approximately 19.3) was discovered on several 300-s survey images (limiting mag about 21.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Jan. 26.56559 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=01h34m01.20s +30d28'37".2 (equinox 2000.0). Which is about 132.9" east and 659.8" south of the center of the NGC598(M33). The variable star candidate on Jan. 19.69848 UT was 20.1 (limiting mag 21.5). All images can be seen from: http://xjltp.china-vo.org/XM23MZ.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: 2020-01-26 13:34:27.000
Flux: 19.3 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: Mi Zhang and Xing Gao, report the outburst of a variable star candidate (mag approximately 19.3) was discovered on several 300-s survey images (limiting mag about 21.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Jan. 26.56559 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=01h34m01.20s +30d28'37".2 (equinox 2000.0). Which is about 132.9" east and 659.8" south of the center of the NGC598(M33). The variable star candidate on Jan. 19.69848 UT was 20.1 (limiting mag 21.5). All images can be seen from: http://xjltp.china-vo.org/XM23MZ.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:
Archival info: Other
Remarks: XM23MZ C2020 01 19.69848 01 34 01.21 +30 28 37.4 20.1R C42
Details of the new object can be viewed here: https://www.wis-tns.org/object/2020bcg
Date Received (UTC): 2020-01-27 12:31:10
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 2020bcg
Discoverer internal name: XM23MZ
Coordinates (J2000): RA = 01:34:01.200 (23.505) DEC = +30:28:37.20 (30.477)
Discovery date: 2020-01-26 13:34:27.000 (JD=2458875.0655903)
Potential host galaxy: M33
Remarks: Mi Zhang and Xing Gao, report the outburst of a variable star candidate (mag approximately 19.3) was discovered on several 300-s survey images (limiting mag about 21.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Jan. 26.56559 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=01h34m01.20s +30d28'37".2 (equinox 2000.0). Which is about 132.9" east and 659.8" south of the center of the NGC598(M33). The variable star candidate on Jan. 19.69848 UT was 20.1 (limiting mag 21.5). All images can be seen from: http://xjltp.china-vo.org/XM23MZ.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: 2020-01-26 13:34:27.000
Flux: 19.3 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: Mi Zhang and Xing Gao, report the outburst of a variable star candidate (mag approximately 19.3) was discovered on several 300-s survey images (limiting mag about 21.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Jan. 26.56559 UT using a unfiltered CCD ( + 0.6-m f/8 Ritchey-Chretien telescope ). The transient approximately located at R.A.=01h34m01.20s +30d28'37".2 (equinox 2000.0). Which is about 132.9" east and 659.8" south of the center of the NGC598(M33). The variable star candidate on Jan. 19.69848 UT was 20.1 (limiting mag 21.5). All images can be seen from: http://xjltp.china-vo.org/XM23MZ.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:
Archival info: Other
Remarks: XM23MZ C2020 01 19.69848 01 34 01.21 +30 28 37.4 20.1R C42
Details of the new object can be viewed here: https://www.wis-tns.org/object/2020bcg