MOA 2020-BLG-187

Event Parameters

Internal ID:gb7-R-4-12741
Discovery date:2020-07-26T17:51:49
RA:17:59:43.36
Dec:-33:13:51.21
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
81525 17:59:43.03 -33:13:50.84 19.58 ± 0.16 4.85
81626 17:59:43.20 -33:13:52.15 17.98 ± 0.14 3.07
81627 17:59:43.21 -33:13:47.08 14.61 ± 0.03 4.47
81708 17:59:43.34 -33:13:52.66 19.12 ± 0.10 2.26
81737 17:59:43.42 -33:13:50.81 17.75 ± 0.16 0.28
81954 17:59:43.68 -33:13:47.95 18.41 ± 0.21 4.51

Last 5 photometry measurements

Observation dateI magseeing
2460245.911 (2023-Oct-28.411) 17.70 ± 0.08 3.19
2460245.940 (2023-Oct-28.440) 17.84 ± 0.14 3.44
2460246.867 (2023-Oct-29.367) 17.96 ± 0.10 3.37
2460246.915 (2023-Oct-29.415) 17.93 ± 0.12 3.17
2460246.938 (2023-Oct-29.438) 17.64 ± 0.14 3.82

Calibration: I = 27.40 - 2.5 log10(ΔF + 7237.69)

Single lens fit parameters

tmax =JD 2459071.06 ± 0.04 UT (2020-Aug-9.56)
tE =53.19 ± 2.34 days
u0 =0.2284 ± 0.0120
Ibase =18.79 ± 0.16

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice