MOA 2017-BLG-437

Event Parameters

Internal ID:gb5-R-4-98565
Discovery date:2017-08-23T13:58:00
RA:17:53:45.45
Dec:-29:39:19.67
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
81177 17:53:45.19 -29:39:20.22 18.32 ± 0.25 4.24
81223 17:53:45.28 -29:39:17.35 16.59 ± 0.11 3.37
81297 17:53:45.43 -29:39:22.02 16.95 ± 0.15 3.18
81298 17:53:45.41 -29:39:14.49 16.88 ± 0.07 4.89
81382 17:53:45.57 -29:39:18.69 16.43 ± 0.16 1.05
81409 17:53:45.60 -29:39:16.84 17.96 ± 0.22 2.74
81506 17:53:45.80 -29:39:21.29 16.10 ± 0.09 4.74

Last 5 photometry measurements

Observation dateI magseeing
2460246.848 (2023-Oct-29.348) 16.51 ± 0.06 3.55
2460246.883 (2023-Oct-29.383) 16.41 ± 0.04 3.51
2460246.895 (2023-Oct-29.395) 16.45 ± 0.04 3.25
2460246.905 (2023-Oct-29.405) 16.43 ± 0.04 3.25
2460246.917 (2023-Oct-29.417) 16.49 ± 0.04 3.32

Calibration: I = 27.40 - 2.5 log10(ΔF + 24366.88)

Single lens fit parameters

tmax =JD 2457995.83 ± 0.02 UT (2017-Aug-30.33)
tE =19.97 ± 0.34 days
u0 =0.4036 ± 0.0107
Ibase =17.11 ± 0.35

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice