MOA 2017-BLG-473

Previous event Next event Return to alert index

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
2460518.057 (2024-Jul-26.557)	18.25 ± 0.43	5.38
2460518.810 (2024-Jul-27.310)	99.99 ± 99.99	2.84
2460518.849 (2024-Jul-27.349)	99.99 ± 99.99	3.41
2460518.883 (2024-Jul-27.383)	19.28 ± 0.41	2.97
2460518.925 (2024-Jul-27.425)	20.53 ± 1.35	2.86

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