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
2460599.954 (2024-Oct-16.454) 16.93 ± 0.04 3.48
2460602.898 (2024-Oct-19.398) 16.93 ± 0.03 3.52
2460610.889 (2024-Oct-27.389) 16.87 ± 0.12 5.21
2460611.932 (2024-Oct-28.432) 17.07 ± 0.10 5.00
2460614.894 (2024-Oct-31.394) 17.17 ± 0.12 4.98

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