MOA 2022-BLG-557

Event Parameters

Internal ID:gb10-R-7-152315
Discovery date:2022-10-13T15:04:54
RA:18:00:53.42
Dec:-27:41:49.81
Current assessment:microlensing/cv
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
73487 18:00:53.73 -27:41:50.96 17.75 ± 0.20 4.83
73630 18:00:53.50 -27:41:47.60 17.97 ± 0.12 3.35
73664 18:00:53.44 -27:41:49.55 17.73 ± 0.23 1.22
73744 18:00:53.31 -27:41:47.24 17.99 ± 0.20 3.38
73745 18:00:53.31 -27:41:53.77 16.25 ± 0.12 3.61
73904 18:00:53.08 -27:41:52.98 19.42 ± 0.39 4.92

Last 5 photometry measurements

Observation dateI magseeing
2460567.979 (2024-Sep-14.479) 16.91 ± 0.12 4.70
2460568.001 (2024-Sep-14.501) 17.59 ± 0.12 3.58
2460568.013 (2024-Sep-14.513) 17.52 ± 0.23 3.03
2460568.024 (2024-Sep-14.524) 17.45 ± 0.22 3.70
2460568.035 (2024-Sep-14.535) 17.70 ± 0.35 3.80

Calibration: I = 27.40 - 2.5 log10(ΔF + 7413.10)

Single lens fit parameters

tmax =JD 2459895.75 ± 3.47 UT (2022-Nov-12.25)
tE =69.83 ± 3.64 days
u0 =0.1643 ± 0.0209
Ibase =17.99 ± 0.33

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice