MOA 2021-BLG-187

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Event Parameters

Internal ID:	gb13-R-8-28871
Discovery date:	2021-06-17T11:18:14
RA:	18:06:13.39
Dec:	-29:20:51.45
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
170944	18:06:13.67	-29:20:51.74	17.76 ± 0.08	4.46
171083	18:06:13.42	-29:20:48.59	16.66 ± 0.10	3.70
171084	18:06:13.40	-29:20:50.49	15.90 ± 0.13	1.81
171085	18:06:13.41	-29:20:53.49	17.42 ± 0.18	1.77
171147	18:06:13.27	-29:20:56.64	18.41 ± 0.18	4.84

Last 5 photometry measurements

Observation date	I mag	seeing
2460245.887 (2023-Oct-28.387)	17.84 ± 1.14	3.28
2460245.920 (2023-Oct-28.420)	21.78 ± 68.34	3.54
2460246.857 (2023-Oct-29.357)	18.51 ± 0.92	3.58
2460246.890 (2023-Oct-29.390)	99.99 ± 99.99	3.56
2460246.924 (2023-Oct-29.424)	18.73 ± 0.57	3.72

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

Single lens fit parameters

t_max	=	JD 2459384.24	±	0.06 UT (2021-Jun-18.74)
t_E	=	37.97	±	1.43 days
u₀	=	0.2666	±	0.0161
I_base	=	18.22	±	0.25

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice