MOA 2020-BLG-250

Event Parameters

Internal ID:gb5-R-8-114405
Discovery date:2020-09-07T10:06:58
RA:17:55:32.62
Dec:-29:05:42.47
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
41161 17:55:32.87 -29:05:43.92 17.72 ± 0.21 4.16
41310 17:55:32.64 -29:05:45.20 16.17 ± 0.11 2.38
41340 17:55:32.57 -29:05:42.77 15.99 ± 0.11 0.30
41429 17:55:32.40 -29:05:40.64 16.40 ± 0.14 3.45
41475 17:55:32.30 -29:05:43.32 15.44 ± 0.20 3.70

Last 5 photometry measurements

Observation dateI magseeing
2460246.848 (2023-Oct-29.348) 15.93 ± 0.03 3.78
2460246.883 (2023-Oct-29.383) 15.96 ± 0.02 3.54
2460246.895 (2023-Oct-29.395) 15.90 ± 0.02 3.40
2460246.905 (2023-Oct-29.405) 15.99 ± 0.03 3.10
2460246.917 (2023-Oct-29.417) 15.96 ± 0.03 3.52

Calibration: I = 27.40 - 2.5 log10(ΔF + 36509.01)

Single lens fit parameters

tmax =JD 2459136.75 ± 0.01 UT (2020-Oct-14.25)
tE =26.50 ± 0.18 days
u0 =0.0319 ± 0.0064
Ibase =15.74 ± 0.31

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice