MOA 2023-BLG-490

Event Parameters

Internal ID:gb8-R-6-10994
Discovery date:2023-10-28T11:14:27
RA:18:03:00.31
Dec:-31:35:24.07
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
3673 18:03:00.43 -31:35:28.61 16.80 ± 0.07 4.77
3715 18:03:00.34 -31:35:21.68 18.09 ± 0.07 3.29
3748 18:03:00.23 -31:35:24.69 16.51 ± 0.09 0.39
3804 18:03:00.12 -31:35:26.82 15.22 ± 0.11 2.94

Last 5 photometry measurements

Observation dateI magseeing
2460610.904 (2024-Oct-27.404) 16.84 ± 0.08 5.13
2460610.934 (2024-Oct-27.434) 16.61 ± 0.05 4.76
2460611.879 (2024-Oct-28.379) 16.75 ± 0.04 4.37
2460611.916 (2024-Oct-28.416) 17.17 ± 0.29 5.88
2460614.880 (2024-Oct-31.380) 16.78 ± 0.09 5.37

Calibration: I = 27.40 - 2.5 log10(ΔF + 22782.43)

Single lens fit parameters

tmax =JD 2460284.64 ± 5.84 UT (2023-Dec-6.14)
tE =18.46 ± 38.91 days
u0 =5.0326 ± 3.8699
Ibase =10.69 ± 0.15

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice