Month: September 2018

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Verification: AT2018ftn (GSNST 2018-ad)

AT2018ftn (GSNST018-ad), Type unknown
Discovered 2018-09-04.401 by GSNST, mag 17.29 at discovery
R.A. = 01h25m17s.870, Decl. = +09°39’00”.06

Observer: Cedric Raguenaud, SW France, GSNST
2018-09-05.000
Not visible. Note the coordinates aren’t clear: LSPM J0125+0939 (high proper motion) is reported 01:25:17.57 +09:39:03.20 in SIMBAD but is visible at 01:25:17.95 +09:39:00.0. The candidate’s location is 01:25:17.457 +09:39:05.33, which is extremely close to LSPM J0125+0939’s official location.
0.25m/f4 reflector + CCMOS 0.5″/pixel
6x300s, bin 1×1

More observation might be required.

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Discovery of a Possible new Transient

Discovery of a possible new transient on 2018-09-04 in Unknown galaxy.
Source Magnitude 17.29 +/- 0.05.
Date of Observations: 2018-09-03.975 from Canary Islands, Spain
Observer: Malhar R. Kendurkar, GSNST Team
Team: M. Kendurkar, C. Raguenaud
Global SuperNova Search Team

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Observation: AT2018ffy

AT2018ffy, Type CV
Discovered 2018-08-18.514 by ATLAS, mag 18.478 at discovery
R.A. = 23h37m23s.570, Decl. = +51°31’13”.21

Observer: Cedric Raguenaud, SW France, GSNST
2018-08-27.088
Approx mag 18.57CV ±0.02, ZP=29.323mag
0.25m/f4 + CCMOS, 0.5″/pixel
2x300s, bin 1×1

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Observation: AT2018fka

AT2018fka, Type unknown
Discovered 2018-08-22.415 by ZTF, mag 18.67 at discovery
R.A. = 01h08m53s.410, Decl. = +09°01’21”.42

Observer: Cedric Raguenaud, SW France, GSNST
2018-08-27.040
Not visible
0.25m/f4 + CCMOS, 0.5″/pixel
6x300s, bin 1×1

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Observation: AT2018fjz

AT2018fjz, Type CV
Discovered 2018-08-19.367 by ZTF, mag 16.14 at discovery
R.A. = 20h34m59s.250, Decl. = +24°36’20”.72

Observer: Cedric Raguenaud, SW France, GSNST
2018-08-27.014
Approx mag 17.07CV ±0.01, ZP=29.830mag
0.25m/f4 + CCMOS, 0.5″/pixel
6x300s, bin 1×1