MOA 2021-BLG-421

Previous event Next event Return to alert index

Event Parameters

Internal ID:	gb4-R-1-187329
Discovery date:	2021-10-05T14:13:23
RA:	17:52:14.08
Dec:	-30:11:07.20
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
90275	17:52:14.38	-30:11:07.19	14.08 ± 0.04	3.66

Last 5 photometry measurements

Observation date	I mag	seeing
2460611.899 (2024-Oct-28.399)	17.60 ± 0.35	5.05
2460611.911 (2024-Oct-28.411)	18.13 ± 0.68	5.35
2460611.921 (2024-Oct-28.421)	16.63 ± 0.43	5.74
2460611.930 (2024-Oct-28.430)	17.89 ± 0.77	5.05
2460614.875 (2024-Oct-31.375)	17.09 ± 0.39	5.53

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

Single lens fit parameters

t_max	=	JD 2459492.79	±	0.02 UT (2021-Oct-5.29)
t_E	=	6.54	±	3.23 days
u₀	=	0.0065	±	0.0032
I_base	=	20.28	±	0.27

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice