MOA 2021-BLG-425

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Event Parameters

Internal ID:	gb9-R-4-88069
Discovery date:	2021-10-05T14:59:32
RA:	17:58:38.04
Dec:	-29:33:11.42
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
140192	17:58:37.75	-29:33:11.14	17.59 ± 0.11	4.52
140236	17:58:37.88	-29:33:14.72	18.34 ± 0.19	4.90
140255	17:58:37.91	-29:33:12.80	16.31 ± 0.09	3.12
140297	17:58:37.97	-29:33:07.84	18.88 ± 0.28	3.45
140340	17:58:38.09	-29:33:11.38	18.26 ± 0.19	0.58
140419	17:58:38.20	-29:33:14.17	17.06 ± 0.14	3.81

Last 5 photometry measurements

Observation date	I mag	seeing
2460246.884 (2023-Oct-29.384)	18.34 ± 0.17	3.43
2460246.896 (2023-Oct-29.396)	18.36 ± 0.18	3.13
2460246.906 (2023-Oct-29.406)	18.08 ± 0.14	3.43
2460246.918 (2023-Oct-29.418)	18.07 ± 0.17	3.49
2460246.927 (2023-Oct-29.427)	17.93 ± 0.18	3.44

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 4528.98)

Single lens fit parameters

t_max	=	JD 2459517.97	±	1.13 UT (2021-Oct-30.47)
t_E	=	69.27	±	4.29 days
u₀	=	0.5034	±	0.0568
I_base	=	17.62	±	0.25

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice