MOA 2024-BLG-257

Event Parameters

Internal ID:gb4-R-8-90163
Discovery date:2024-10-06T11:07:51
RA:17:56:19.35
Dec:-30:52:14.79
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
26726 17:56:19.65 -30:52:15.47 18.18 ± 0.19 4.64
26829 17:56:19.44 -30:52:14.17 17.60 ± 0.12 2.28
26873 17:56:19.39 -30:52:11.87 16.45 ± 0.12 3.80
26874 17:56:19.36 -30:52:19.01 17.27 ± 0.21 3.83
26969 17:56:19.22 -30:52:14.79 15.33 ± 0.13 1.25
27097 17:56:18.98 -30:52:15.41 16.57 ± 0.07 4.28

Last 5 photometry measurements

Observation dateI magseeing
2460611.899 (2024-Oct-28.399) 15.23 ± 0.02 4.45
2460611.911 (2024-Oct-28.411) 15.28 ± 0.02 4.79
2460611.921 (2024-Oct-28.421) 15.28 ± 0.04 5.06
2460611.930 (2024-Oct-28.430) 15.29 ± 0.02 4.36
2460614.875 (2024-Oct-31.375) 15.25 ± 0.02 4.85

Calibration: I = 27.40 - 2.5 log10(ΔF + 67421.75)

Single lens fit parameters

tmax =JD 2460591.55 ± 0.06 UT (2024-Oct-8.05)
tE =8.21 ± 1.20 days
u0 =0.2945 ± 0.0544
Ibase =18.66 ± 0.25

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice