MOA 2019-BLG-042

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Event Parameters

Internal ID:	gb1-R-1-50122
Discovery date:	2019-02-25T15:25:59
RA:	17:46:25.06
Dec:	-33:40:17.13
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
42512	17:46:24.76	-33:40:17.18	17.74 ± 0.14	4.54
42541	17:46:24.89	-33:40:14.40	16.98 ± 0.03	3.59
42609	17:46:25.12	-33:40:20.68	18.54 ± 0.07	4.34
42629	17:46:25.19	-33:40:12.52	16.56 ± 0.08	4.37
42674	17:46:25.32	-33:40:13.43	15.87 ± 0.12	4.32

Last 5 photometry measurements

Observation date	I mag	seeing
2460245.923 (2023-Oct-28.423)	19.60 ± 2.59	3.97
2460245.937 (2023-Oct-28.437)	19.33 ± 2.25	4.00
2460246.859 (2023-Oct-29.359)	18.90 ± 1.16	3.96
2460246.892 (2023-Oct-29.392)	19.86 ± 3.23	3.94
2460246.926 (2023-Oct-29.426)	18.27 ± 0.78	3.97

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

Single lens fit parameters

t_max	=	JD 2458539.64	±	0.02 UT (2019-Feb-25.14)
t_E	=	65.69	±	6.29 days
u₀	=	0.0064	±	0.0009
I_base	=	21.33	±	0.15

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice