MOA 2022-BLG-189

Event Parameters

Internal ID:gb17-R-8-55375
Discovery date:2022-04-25T14:31:57
RA:18:13:53.14
Dec:-27:38:54.33
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
142875 18:13:53.28 -27:38:50.79 17.90 ± 0.10 4.99
142900 18:13:53.17 -27:38:55.32 16.01 ± 0.26 1.13
142958 18:13:53.15 -27:38:51.90 18.46 ± 0.17 3.21
142985 18:13:53.08 -27:38:53.77 18.08 ± 0.40 1.20
143061 18:13:52.97 -27:38:51.14 18.44 ± 0.17 4.26
143168 18:13:52.77 -27:38:54.86 17.93 ± 0.20 4.52

Last 5 photometry measurements

Observation dateI magseeing
2460245.899 (2023-Oct-28.399) 15.94 ± 0.01 3.09
2460245.931 (2023-Oct-28.431) 15.93 ± 0.02 3.38
2460246.862 (2023-Oct-29.362) 15.99 ± 0.02 3.57
2460246.903 (2023-Oct-29.403) 15.99 ± 0.02 3.35
2460246.931 (2023-Oct-29.431) 16.00 ± 0.02 3.74

Calibration: I = 27.40 - 2.5 log10(ΔF + 35974.93)

Single lens fit parameters

tmax =JD 2459697.48 ± 0.01 UT (2022-Apr-27.98)
tE =30.56 ± 1.35 days
u0 =0.1080 ± 0.0063
Ibase =19.21 ± 0.26

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice