MOA 2023-BLG-172

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Event Parameters

Internal ID:	gb15-R-6-54928
Discovery date:	2023-05-04T19:20:09
RA:	18:07:29.18
Dec:	-26:24:17.87
Current assessment:	microlensing

Now looks like binary microlensing

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
46798	18:07:29.46	-26:24:16.63	19.27 ± 0.13	4.90
46821	18:07:29.41	-26:24:19.58	18.95 ± 0.17	4.06
46932	18:07:29.21	-26:24:21.78	19.57 ± 0.16	3.66
47001	18:07:29.13	-26:24:18.51	17.21 ± 0.08	0.09
47093	18:07:28.96	-26:24:22.43	19.28 ± 0.17	4.79

Last 5 photometry measurements

Observation date	I mag	seeing
2460244.911 (2023-Oct-27.411)	17.05 ± 0.09	3.69
2460245.866 (2023-Oct-28.366)	17.30 ± 0.09	3.40
2460245.909 (2023-Oct-28.409)	17.22 ± 0.12	3.43
2460246.865 (2023-Oct-29.365)	17.28 ± 0.10	3.50
2460246.912 (2023-Oct-29.412)	17.03 ± 0.11	3.55

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 11901.45)

Single lens fit parameters

t_max	=	JD 2460071.84	±	0.06 UT (2023-May-7.34)
t_E	=	95.82	±	5.14 days
u₀	=	0.0230	±	0.0015
I_base	=	20.57	±	0.26

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice