MOA 2023-BLG-487

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Event Parameters

Internal ID:	gb9-R-4-111223
Discovery date:	2023-10-28T03:39:42
RA:	17:57:09.99
Dec:	-29:40:51.69
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
5668	17:57:10.07	-29:40:50.78	14.39 ± 0.03	0.58
5734	17:57:10.18	-29:40:46.87	16.72 ± 0.07	4.88
5794	17:57:10.32	-29:40:53.64	15.49 ± 0.04	4.68

Last 5 photometry measurements

Observation date	I mag	seeing
2460611.919 (2024-Oct-28.419)	14.41 ± 0.04	5.58
2460611.928 (2024-Oct-28.428)	14.33 ± 0.01	5.10
2460614.863 (2024-Oct-31.363)	14.38 ± 0.02	5.40
2460614.869 (2024-Oct-31.369)	14.34 ± 0.01	4.98
2460614.873 (2024-Oct-31.373)	14.45 ± 0.04	5.47

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 159661.42)

Single lens fit parameters

t_max	=	JD 2460172.11	±	0.03 UT (2023-Aug-15.61)
t_E	=	13209.25	±	9969.30 days
u₀	=	0.0005	±	0.0015
I_base	=	24.87	±	0.24

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice