MOA 2021-BLG-139

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Event Parameters

Internal ID:	gb14-R-8-90864
Discovery date:	2021-05-22T19:48:53
RA:	18:06:53.36
Dec:	-27:25:19.61
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
65857	18:06:53.65	-27:25:21.48	18.49 ± 0.17	4.80
66046	18:06:53.30	-27:25:24.14	19.34 ± 0.34	4.08
66067	18:06:53.26	-27:25:22.17	17.73 ± 0.12	2.20
66091	18:06:53.20	-27:25:20.22	17.48 ± 0.09	1.66
66162	18:06:53.09	-27:25:22.33	17.47 ± 0.12	3.86

Last 5 photometry measurements

Observation date	I mag	seeing
2460246.855 (2023-Oct-29.355)	23.38 ± 17.38	3.47
2460246.889 (2023-Oct-29.389)	19.88 ± 0.68	3.61
2460246.901 (2023-Oct-29.401)	19.43 ± 0.43	2.97
2460246.911 (2023-Oct-29.411)	20.52 ± 1.17	3.59
2460246.923 (2023-Oct-29.423)	19.49 ± 0.75	3.94

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

Single lens fit parameters

t_max	=	JD 2459354.26	±	0.00 UT (2021-May-19.76)
t_E	=	8158.99	±	5837.07 days
u₀	=	0.0000	±	0.0000
I_base	=	28.44	±	0.24

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice