MOA 2019-BLG-431

Event Parameters

Internal ID:gb3-R-3-35817
Discovery date:2019-09-21T03:27:56
RA:17:51:44.13
Dec:-32:41:22.51
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
108136 17:51:43.90 -32:41:22.79 19.89 ± 0.30 3.77
108222 17:51:44.09 -32:41:25.60 17.05 ± 0.12 3.97
108223 17:51:44.08 -32:41:18.47 19.02 ± 0.16 3.80
108266 17:51:44.19 -32:41:22.00 16.71 ± 0.04 0.19
108330 17:51:44.31 -32:41:25.18 16.87 ± 0.10 3.81
108399 17:51:44.53 -32:41:20.81 15.57 ± 0.09 4.68

Last 5 photometry measurements

Observation dateI magseeing
2460572.945 (2024-Sep-19.445) 16.71 ± 0.05 4.23
2460572.955 (2024-Sep-19.455) 16.70 ± 0.05 4.08
2460573.017 (2024-Sep-19.517) 16.74 ± 0.06 4.40
2460574.028 (2024-Sep-20.528) 16.71 ± 0.06 4.53
2460575.920 (2024-Sep-22.420) 16.47 ± 0.10 4.67

Calibration: I = 27.40 - 2.5 log10(ΔF + 18897.31)

Single lens fit parameters

tmax =JD 2458744.91 ± 0.14 UT (2019-Sep-18.41)
tE =40.08 ± 1.66 days
u0 =0.5694 ± 0.0379
Ibase =17.69 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice