Discovery certificate for object 2015cz
TNS Astronomical Transient Report No. 40404 [ 2019TNSTR1124....1L ]

Date Received (UTC): 2019-07-02 06:52:48
Sender: Dr. Kuntal Misra
Source Group: None

Jiaming Liao(Hefei,Anhui,China),Guoyou Sun(Wenzhou,Zhejiang,China) and Xing Gao (Urumqi,Xinjiang,China) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2015cz
Discoverer internal name: PNV J01315945+3328458
Coordinates (J2000): RA = 01:31:59.450 (22.997708) DEC = +33:28:45.80 (33.479389)
Discovery date: 2015-10-02 21:36:00 (JD=2457298.4)

Potential host galaxy: NGC 582
Host redshift: 0.0145


Photometry

Discovery (first detection):
Discovery date: 2015-10-02 21:36:00
Flux: 16.5 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Jiaming Liao(Hefei,Anhui,China),Guoyou Sun(Wenzhou,Zhejiang,China) and Xing Gao (Urumqi,Xinjiang,China), reported the discovery of a possible supernova (mag approximately 16.5) on one 40-s survey image (limiting mag about 19.0) taken by Xing Gao in Xingming Observation Sky Survey(C42) around Oct.02.92241 UT. using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ).

Last non-detection:
Last non-detection date: 2015-09-18 00:00:00
Limiting flux: 19 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Nothing is visible at this position on archival images taken with an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ) on Sept.18(limiting mag 19.0), or on the DSS(POSS-II Red) from Nov.19,1989(limiting mag about 19.5).

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2015cz