TNS Astronomical Transient Report No. 109800 [ 2021TNSTR1657....1K ]
Date Received (UTC): 2021-05-16 07:33:56
Date made public:
Sender: Denis Denisenko
Reporting Group: None Discovery Data Source: POSS
Platon Kachalin, Denis Denisenko report/s the discovery of a new astronomical transient.
IAU Designation: AT 1984W
Coordinates (J2000): RA = 21:02:23.690 (315.598708) DEC = -16:49:02.30 (-16.817306)
Discovery date: 1984-08-02 14:08:00.000 (JD=2445915.0888889)
Potential host galaxy: IC 5078
Host redshift: 0.00493
Remarks: Possible SN is located 108" West and 3" North of the galaxy center. No asteroids brighter than 18m were found within 30 arcmin radius. Himalia (JVI) was more than 38 deg away, Pluto more than 100 deg away.
Photometry
Discovery (first detection):
Discovery date: 1984-08-02 14:08:00.000
Flux: 13.5 ABMag
Filter: R-Cousins
Instrument: Other
Telescope: Other
Remarks: UK Schmidt Red plate with 50-minutes exposure time
Last non-detection:
Last non-detection date: 1983-10-08 10:11:00
Limiting flux: 22 ABMag
Filter: B-Johnson
Instrument: Other
Telescope: Other
Remarks: Nothing is present at this position on the 1983-10-08 SERC-J blue plate with 60-minutes exposure time
Archival info: DSS
Remarks: Nothing is present at this position on the 1987-09-26 SERC-I infrared plate with 90-minutes exposure time (limiting magnitude 19.5)
Details of the new object can be viewed here: https://www.wis-tns.org/object/1984W
Date Received (UTC): 2021-05-16 07:33:56
Date made public:
Sender: Denis Denisenko
Reporting Group: None Discovery Data Source: POSS
Platon Kachalin, Denis Denisenko report/s the discovery of a new astronomical transient.
IAU Designation: AT 1984W
Coordinates (J2000): RA = 21:02:23.690 (315.598708) DEC = -16:49:02.30 (-16.817306)
Discovery date: 1984-08-02 14:08:00.000 (JD=2445915.0888889)
Potential host galaxy: IC 5078
Host redshift: 0.00493
Remarks: Possible SN is located 108" West and 3" North of the galaxy center. No asteroids brighter than 18m were found within 30 arcmin radius. Himalia (JVI) was more than 38 deg away, Pluto more than 100 deg away.
Photometry
Discovery (first detection):
Discovery date: 1984-08-02 14:08:00.000
Flux: 13.5 ABMag
Filter: R-Cousins
Instrument: Other
Telescope: Other
Remarks: UK Schmidt Red plate with 50-minutes exposure time
Last non-detection:
Last non-detection date: 1983-10-08 10:11:00
Limiting flux: 22 ABMag
Filter: B-Johnson
Instrument: Other
Telescope: Other
Remarks: Nothing is present at this position on the 1983-10-08 SERC-J blue plate with 60-minutes exposure time
Archival info: DSS
Remarks: Nothing is present at this position on the 1987-09-26 SERC-I infrared plate with 90-minutes exposure time (limiting magnitude 19.5)
Details of the new object can be viewed here: https://www.wis-tns.org/object/1984W