MOA 2017-BLG-490

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Event Parameters

Internal ID:	gb9-R-3-104237
Discovery date:	2017-09-29T11:03:18
RA:	17:57:31.83
Dec:	-29:15:53.84
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
15223	17:57:31.67	-29:15:55.28	18.12 ± 0.16	3.47
15357	17:57:31.93	-29:15:53.74	15.84 ± 0.07	0.93
15406	17:57:32.10	-29:15:55.12	16.84 ± 0.08	3.62

Last 5 photometry measurements

Observation date	I mag	seeing
2460568.000 (2024-Sep-14.500)	15.83 ± 0.03	3.81
2460568.012 (2024-Sep-14.512)	15.81 ± 0.03	3.96
2460568.022 (2024-Sep-14.522)	15.87 ± 0.07	3.96
2460568.034 (2024-Sep-14.534)	15.75 ± 0.05	3.75
2460568.044 (2024-Sep-14.544)	15.92 ± 0.13	3.37

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 42033.93)

Single lens fit parameters

t_max	=	JD 2458030.89	±	0.01 UT (2017-Oct-4.39)
t_E	=	32.40	±	0.17 days
u₀	=	0.0489	±	0.0006
I_base	=	18.07	±	0.26

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice