MOA 2017-BLG-490

Event Parameters

Internal ID:gb9-R-3-104237
Discovery date:2017-09-29T11:03:18
RA:17:57:31.83
Dec:-29:15:53.84
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
15223 17:57:31.67 -29:15:55.28 18.12 ± 0.16 3.47
15357 17:57:31.93 -29:15:53.74 15.84 ± 0.07 0.93
15406 17:57:32.10 -29:15:55.12 16.84 ± 0.08 3.62

Last 5 photometry measurements

Observation dateI magseeing
2460572.941 (2024-Sep-19.441) 15.82 ± 0.02 3.90
2460572.952 (2024-Sep-19.452) 15.76 ± 0.02 4.03
2460572.964 (2024-Sep-19.464) 15.89 ± 0.07 5.10
2460573.025 (2024-Sep-19.525) 15.98 ± 0.07 4.88
2460575.916 (2024-Sep-22.416) 15.95 ± 0.10 5.37

Calibration: I = 27.40 - 2.5 log10(ΔF + 42033.93)

Single lens fit parameters

tmax =JD 2458030.89 ± 0.01 UT (2017-Oct-4.39)
tE =32.40 ± 0.17 days
u0 =0.0489 ± 0.0006
Ibase =18.07 ± 0.26

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice