MOA 2017-BLG-473

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Event Parameters

Internal ID:	gb17-R-2-16967
Discovery date:	2017-09-13T12:23:07
RA:	18:11:07.98
Dec:	-27:05:49.78
Current assessment:	microlensing

A transient event found by MOA. Likely caustic crossing binary.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
94239	18:11:07.68	-27:05:49.03	18.14 ± 0.08	4.77
94280	18:11:07.83	-27:05:52.82	15.54 ± 0.02	4.62
94384	18:11:08.16	-27:05:47.27	16.46 ± 0.04	2.73

Last 5 photometry measurements

Observation date	I mag	seeing
2460610.879 (2024-Oct-27.379)	22.09 ± 7.77	5.40
2460610.916 (2024-Oct-27.416)	19.88 ± 0.80	5.12
2460611.891 (2024-Oct-28.391)	20.21 ± 0.56	4.40
2460611.926 (2024-Oct-28.426)	18.11 ± 0.29	5.64
2460614.884 (2024-Oct-31.384)	19.33 ± 0.67	5.41

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

Single lens fit parameters

t_max	=	JD 2458010.33	±	0.02 UT (2017-Sep-13.83)
t_E	=	90.45	±	11.38 days
u₀	=	0.0081	±	0.0013
I_base	=	20.85	±	0.14

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice