MOA 2023-BLG-189

Event Parameters

Internal ID:gb8-R-9-38817
Discovery date:2023-05-14T21:51:52
RA:18:01:00.30
Dec:-30:31:13.46
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
57338 18:01:00.43 -30:31:15.11 16.62 ± 0.09 2.56
57486 18:01:00.08 -30:31:11.23 16.92 ± 0.06 3.72
57523 18:01:00.02 -30:31:12.99 17.13 ± 0.07 3.29
57524 18:00:60.00 -30:31:17.30 15.95 ± 0.16 4.85

Last 5 photometry measurements

Observation dateI magseeing
2460610.904 (2024-Oct-27.404) 18.45 ± 0.93 5.22
2460610.934 (2024-Oct-27.434) 19.90 ± 1.86 4.80
2460611.879 (2024-Oct-28.379) 22.66 ± 14.83 4.36
2460611.916 (2024-Oct-28.416) 99.99 ± 99.99 5.94
2460614.880 (2024-Oct-31.380) 21.52 ± 17.51 5.25

Calibration: I = 27.40 - 2.5 log10(ΔF + 0.00)

Single lens fit parameters

tmax =JD 2460075.60 ± 0.13 UT (2023-May-11.10)
tE =66.60 ± 16.09 days
u0 =0.0227 ± 0.0098
Ibase =21.84 ± 0.20

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice