MOA 2017-BLG-089

Event Parameters

Internal ID:gb5-R-5-167819
Discovery date:2017-03-15T16:22:23
RA:17:52:31.43
Dec:-30:00:44.51
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
34721 17:52:31.37 -30:00:42.20 17.58 ± 0.06 2.37
34737 17:52:31.41 -30:00:47.64 18.36 ± 0.09 4.05
34774 17:52:31.50 -30:00:42.79 17.65 ± 0.07 1.28
34802 17:52:31.58 -30:00:39.74 15.91 ± 0.03 4.70
34830 17:52:31.69 -30:00:43.66 15.84 ± 0.04 2.93
34870 17:52:31.75 -30:00:41.45 16.45 ± 0.07 4.53

Last 5 photometry measurements

Observation dateI magseeing
2460246.848 (2023-Oct-29.348) 17.65 ± 0.15 3.89
2460246.883 (2023-Oct-29.383) 17.76 ± 0.09 3.65
2460246.895 (2023-Oct-29.395) 17.50 ± 0.08 3.60
2460246.905 (2023-Oct-29.405) 17.71 ± 0.10 3.37
2460246.917 (2023-Oct-29.417) 17.52 ± 0.08 3.46

Calibration: I = 27.40 - 2.5 log10(ΔF + 7935.97)

Single lens fit parameters

tmax =JD 2457830.14 ± 0.05 UT (2017-Mar-17.64)
tE =142.49 ± 6.43 days
u0 =0.0453 ± 0.0024
Ibase =20.68 ± 0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice