MOA 2023-BLG-289

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Event Parameters

Internal ID:	gb12-R-4-7671
Discovery date:	2023-06-28T20:19:20
RA:	18:04:20.40
Dec:	-31:17:54.99
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
141117	18:04:20.35	-31:17:51.96	18.70 ± 0.12	2.85
141176	18:04:20.46	-31:17:54.34	18.23 ± 0.08	0.11
141244	18:04:20.60	-31:17:53.12	18.40 ± 0.11	2.39
141304	18:04:20.73	-31:17:56.66	15.44 ± 0.03	4.39

Last 5 photometry measurements

Observation date	I mag	seeing
2460610.885 (2024-Oct-27.385)	17.62 ± 0.20	5.19
2460610.929 (2024-Oct-27.429)	18.44 ± 0.36	4.70
2460611.906 (2024-Oct-28.406)	18.09 ± 0.30	4.66
2460611.938 (2024-Oct-28.438)	18.08 ± 0.17	4.31
2460614.890 (2024-Oct-31.390)	17.31 ± 0.39	5.59

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 4651.57)

Single lens fit parameters

t_max	=	JD 2460137.50	±	0.03 UT (2023-Jul-12.00)
t_E	=	28.41	±	0.80 days
u₀	=	0.2558	±	0.0106
I_base	=	17.84	±	0.15

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice