MOA 2017-BLG-457

Event Parameters

Internal ID:gb19-R-9-17415
Discovery date:2017-09-04T01:03:12
RA:18:20:34.22
Dec:-25:15:57.73
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
103878 18:20:34.46 -25:16:01.22 17.36 ± 0.11 4.99
103904 18:20:34.43 -25:15:56.62 18.35 ± 0.14 4.05
104016 18:20:34.21 -25:15:58.19 17.00 ± 0.04 0.52
104017 18:20:34.22 -25:16:01.07 17.50 ± 0.04 2.91
104131 18:20:33.99 -25:15:56.42 18.37 ± 0.07 3.33

Last 5 photometry measurements

Observation dateI magseeing
2460517.893 (2024-Jul-26.393) 16.82 ± 0.14 3.92
2460518.068 (2024-Jul-26.568) 17.41 ± 0.25 4.86
2460518.819 (2024-Jul-27.319) 16.96 ± 0.05 2.88
2460518.893 (2024-Jul-27.393) 16.88 ± 0.04 2.78
2460518.901 (2024-Jul-27.401) 16.85 ± 0.05 3.13

Calibration: I = 27.40 - 2.5 log10(ΔF + 14481.05)

Single lens fit parameters

tmax =JD 2458008.15 ± 0.10 UT (2017-Sep-11.65)
tE =1.60 ± 5.21 days
u0 =11.2238 ± 8.8974
Ibase =7.81 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice