MOA 2017-BLG-289

Event Parameters

Internal ID:gb7-R-9-8478
Discovery date:2017-05-30T15:29:59
RA:18:00:13.93
Dec:-32:23:09.28
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
79045 18:00:14.22 -32:23:09.06 19.50 ± 0.20 4.48
79066 18:00:14.18 -32:23:12.63 18.19 ± 0.09 4.80
79107 18:00:13.99 -32:23:12.01 18.81 ± 0.17 2.63
79126 18:00:14.02 -32:23:07.19 19.44 ± 0.20 3.29
79203 18:00:13.83 -32:23:10.55 18.59 ± 0.16 1.01
79277 18:00:13.69 -32:23:09.15 16.09 ± 0.03 2.58

Last 5 photometry measurements

Observation dateI magseeing
2460245.911 (2023-Oct-28.411) 18.96 ± 0.56 3.39
2460245.940 (2023-Oct-28.440) 18.16 ± 0.33 3.49
2460246.867 (2023-Oct-29.367) 19.58 ± 0.76 3.55
2460246.915 (2023-Oct-29.415) 18.80 ± 0.44 3.26
2460246.938 (2023-Oct-29.438) 18.41 ± 0.46 3.94

Calibration: I = 27.40 - 2.5 log10(ΔF + 3326.60)

Single lens fit parameters

tmax =JD 2457927.30 ± 0.00 UT (2017-Jun-22.80)
tE =61.32 ± 1.14 days
u0 =0.0016 ± 0.0028
Ibase =18.69 ± 0.14

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice