MOA 2023-BLG-140

Event Parameters

Internal ID:gb4-R-8-85708
Discovery date:2023-04-23T20:57:45
RA:17:56:45.53
Dec:-31:00:43.48
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
106994 17:56:45.62 -31:00:43.63 16.51 ± 0.19 1.90
107041 17:56:45.51 -31:00:41.43 18.48 ± 0.14 2.78
107061 17:56:45.47 -31:00:44.64 16.42 ± 0.14 0.60
107062 17:56:45.48 -31:00:48.57 18.72 ± 0.26 4.66
107110 17:56:45.37 -31:00:39.81 18.22 ± 0.16 4.67
107200 17:56:45.21 -31:00:44.13 15.06 ± 0.12 3.69

Last 5 photometry measurements

Observation dateI magseeing
2460246.887 (2023-Oct-29.387) 16.38 ± 0.03 3.34
2460246.898 (2023-Oct-29.398) 16.37 ± 0.04 2.99
2460246.909 (2023-Oct-29.409) 16.37 ± 0.03 3.28
2460246.920 (2023-Oct-29.420) 16.39 ± 0.04 3.58
2460246.929 (2023-Oct-29.429) 16.31 ± 0.04 3.48

Calibration: I = 27.40 - 2.5 log10(ΔF + 24615.01)

Single lens fit parameters

tmax =JD 2460060.41 ± 0.00 UT (2023-Apr-25.91)
tE =0.18 ± 0.16 days
u0 =11.2698 ± 5.5499
Ibase =6.18 ± 0.25

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice