MOA 2017-BLG-490

Previous event Next event Return to alert index

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
2460518.907 (2024-Jul-27.407)	15.75 ± 0.02	3.50
2460518.919 (2024-Jul-27.419)	15.79 ± 0.02	3.22
2460518.929 (2024-Jul-27.429)	15.63 ± 0.25	3.35
2460519.045 (2024-Jul-27.545)	15.85 ± 0.03	3.39
2460519.048 (2024-Jul-27.548)	15.75 ± 0.03	3.52

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