MOA 2020-BLG-289

Event Parameters

Internal ID:gb1-R-9-17134
Discovery date:2020-10-21T18:28:44
RA:17:48:29.11
Dec:-34:02:11.06
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
139708 17:48:29.31 -34:02:13.28 19.07 ± 0.18 3.62
139764 17:48:29.24 -34:02:08.61 16.05 ± 0.09 3.90
139765 17:48:29.23 -34:02:11.93 17.97 ± 0.17 2.12
139812 17:48:29.14 -34:02:09.35 15.13 ± 0.10 2.57
139839 17:48:29.11 -34:02:14.61 18.14 ± 0.14 3.13
139885 17:48:29.02 -34:02:12.01 15.60 ± 0.16 0.67
139990 17:48:28.82 -34:02:08.59 18.27 ± 0.16 4.46
140012 17:48:28.77 -34:02:13.58 16.32 ± 0.08 4.28

Last 5 photometry measurements

Observation dateI magseeing
2460245.923 (2023-Oct-28.423) 15.58 ± 0.03 3.62
2460245.937 (2023-Oct-28.437) 15.73 ± 0.04 3.70
2460246.859 (2023-Oct-29.359) 15.58 ± 0.02 3.81
2460246.892 (2023-Oct-29.392) 15.65 ± 0.02 3.63
2460246.926 (2023-Oct-29.426) 15.69 ± 0.03 3.78

Calibration: I = 27.40 - 2.5 log10(ΔF + 52722.99)

Single lens fit parameters

tmax =JD 2459151.27 ± 4.64 UT (2020-Oct-28.77)
tE =41.12 ± 14.01 days
u0 =0.3161 ± 0.1345
Ibase =18.09 ± 0.23

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice