MOA 2021-BLG-089

Event Parameters

Internal ID:gb4-R-4-36543
Discovery date:2021-04-19T14:33:04
RA:17:52:25.39
Dec:-31:11:01.14
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
92942 17:52:25.28 -31:11:01.42 19.30 ± 0.25 2.29
93053 17:52:25.53 -31:11:02.14 18.73 ± 0.12 2.03
93054 17:52:25.56 -31:10:59.88 16.64 ± 0.06 1.77
93116 17:52:25.70 -31:11:03.84 17.11 ± 0.06 4.84
93151 17:52:25.78 -31:11:00.60 16.98 ± 0.10 4.56

Last 5 photometry measurements

Observation dateI magseeing
2460246.887 (2023-Oct-29.387) 18.71 ± 0.28 3.67
2460246.898 (2023-Oct-29.398) 21.00 ± 2.42 3.26
2460246.909 (2023-Oct-29.409) 99.99 ± 99.99 3.55
2460246.920 (2023-Oct-29.420) 19.33 ± 0.56 3.76
2460246.929 (2023-Oct-29.429) 99.99 ± 99.99 3.82

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

Single lens fit parameters

tmax =JD 2459329.67 ± 0.01 UT (2021-Apr-25.17)
tE =23.04 ± 0.46 days
u0 =0.0921 ± 0.0024
Ibase =18.56 ± 0.19

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice