TNS Astronomical Transient Report No. 125658 [ 2021TNSTR3467....1T ]
Date Received (UTC): 2021-10-10 13:08:06
Date made public:
Sender: Hanjie Tan
Reporting Group: XOSS Discovery Data Source: XOSS
Hanjie Tan (Astronomical Institute of Charles University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory) report/s the discovery of a new astronomical transient.
IAU Designation: SN 2021aazm
Discoverer internal name: XM75HT
Coordinates (J2000): RA = 00:24:54.980 (6.229083) DEC = +45:10:06.10 (45.168361)
Discovery date: 2021-10-09 19:55:37.920 (JD=2459497.3303)
Potential host galaxy: UGC 235
Host redshift: 0.043549
Remarks: Hanjie Tan (Astronomical Institute of Charles University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory), report the discovery of a possible supernova (mag approximately 18.32 on several 120-s survey image (limiting mag about 19.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Oct. 09.83030 UTC using unfiltered CCD and PAT telescope (0.3-m f/3.6 reflector). The transient approximately located at R.A.=00h24m54.98s +45d10'06".1 (equinox 2000.0). Which is about 14.1" west and 15.4" north of the center of the UGC 235. Nothing is visible at this position on archival images taken on archive images. Discovery images can be found at: http://xjltp.china-vo.org/xm75ht.html
Photometry
Discovery (first detection):
Discovery date: 2021-10-09 19:55:37.920
Flux: 18.32 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: Hanjie Tan (Astronomical Institute of Charles University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory), report the discovery of a possible supernova (Gmag approximately 18.32 on several 120-s survey image (limiting mag about 19.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Oct. 09.83030 UTC using unfiltered CCD and PAT telescope (0.3-m f/3.6 reflector). The transient approximately located at R.A.=00h24m54.98s +45d10'06".1 (equinox 2000.0). Which is about 14.1" west and 15.4" north of the center of the UGC 235. Nothing is visible at this position on archival images taken on archive images. Discovery images can be found at: http://xjltp.china-vo.org/xm75ht.html
Last non-detection:
Archival info: DSS
Details of the new object can be viewed here: https://www.wis-tns.org/object/2021aazm
Date Received (UTC): 2021-10-10 13:08:06
Date made public:
Sender: Hanjie Tan
Reporting Group: XOSS Discovery Data Source: XOSS
Hanjie Tan (Astronomical Institute of Charles University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory) report/s the discovery of a new astronomical transient.
IAU Designation: SN 2021aazm
Discoverer internal name: XM75HT
Coordinates (J2000): RA = 00:24:54.980 (6.229083) DEC = +45:10:06.10 (45.168361)
Discovery date: 2021-10-09 19:55:37.920 (JD=2459497.3303)
Potential host galaxy: UGC 235
Host redshift: 0.043549
Remarks: Hanjie Tan (Astronomical Institute of Charles University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory), report the discovery of a possible supernova (mag approximately 18.32 on several 120-s survey image (limiting mag about 19.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Oct. 09.83030 UTC using unfiltered CCD and PAT telescope (0.3-m f/3.6 reflector). The transient approximately located at R.A.=00h24m54.98s +45d10'06".1 (equinox 2000.0). Which is about 14.1" west and 15.4" north of the center of the UGC 235. Nothing is visible at this position on archival images taken on archive images. Discovery images can be found at: http://xjltp.china-vo.org/xm75ht.html
Photometry
Discovery (first detection):
Discovery date: 2021-10-09 19:55:37.920
Flux: 18.32 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other
Remarks: Hanjie Tan (Astronomical Institute of Charles University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory), report the discovery of a possible supernova (Gmag approximately 18.32 on several 120-s survey image (limiting mag about 19.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Oct. 09.83030 UTC using unfiltered CCD and PAT telescope (0.3-m f/3.6 reflector). The transient approximately located at R.A.=00h24m54.98s +45d10'06".1 (equinox 2000.0). Which is about 14.1" west and 15.4" north of the center of the UGC 235. Nothing is visible at this position on archival images taken on archive images. Discovery images can be found at: http://xjltp.china-vo.org/xm75ht.html
Last non-detection:
Archival info: DSS
Details of the new object can be viewed here: https://www.wis-tns.org/object/2021aazm