MOA 2023-BLG-491

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Event Parameters

Internal ID:	gb12-R-1-128764
Discovery date:	2023-10-28T14:18:04
RA:	18:03:14.12
Dec:	-30:19:39.11
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
5564	18:03:13.88	-30:19:38.25	17.95 ± 0.07	3.89

Last 5 photometry measurements

Observation date	I mag	seeing
2460610.885 (2024-Oct-27.385)	19.48 ± 1.62	5.74
2460610.929 (2024-Oct-27.429)	18.61 ± 0.54	5.31
2460611.906 (2024-Oct-28.406)	21.14 ± 3.82	5.41
2460611.938 (2024-Oct-28.438)	19.64 ± 1.06	5.07
2460614.890 (2024-Oct-31.390)	16.91 ± 0.25	6.26

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

Single lens fit parameters

t_max	=	JD 2460249.97	±	1.44 UT (2023-Nov-1.47)
t_E	=	79.25	±	11.08 days
u₀	=	0.0431	±	0.0115
I_base	=	19.52	±	0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice