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
2460610.870 (2024-Oct-27.370) 15.08 ± 0.06 5.76
2460610.899 (2024-Oct-27.399) 15.16 ± 0.03 4.68
2460610.911 (2024-Oct-27.411) 15.27 ± 0.02 5.04
2460610.922 (2024-Oct-27.422) 15.24 ± 0.02 4.60
2460610.931 (2024-Oct-27.431) 15.21 ± 0.02 4.50

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

Single lens fit parameters

tmax =JD 2460591.50 ± 0.03 UT (2024-Oct-8.00)
tE =2.68 ± 1.33 days
u0 =1.3103 ± 0.5863
Ibase =15.84 ± 0.25

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice