MOA 2021-BLG-251

Event Parameters

Internal ID:gb2-R-3-27251
Discovery date:2021-07-11T17:45:43
RA:17:53:11.21
Dec:-34:35:24.19
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
70729 17:53:11.10 -34:35:20.64 18.46 ± 0.16 3.61
70777 17:53:11.17 -34:35:25.63 15.74 ± 0.14 2.38
70838 17:53:11.25 -34:35:23.51 18.14 ± 0.19 0.09
70920 17:53:11.42 -34:35:24.47 18.81 ± 0.29 2.34
70921 17:53:11.43 -34:35:20.24 18.72 ± 0.15 4.13
71022 17:53:11.64 -34:35:23.84 15.97 ± 0.20 4.93

Last 5 photometry measurements

Observation dateI magseeing
2460610.938 (2024-Oct-27.438) 17.63 ± 0.14 4.56
2460611.892 (2024-Oct-28.392) 18.30 ± 0.23 4.36
2460611.927 (2024-Oct-28.427) 17.75 ± 0.41 5.52
2460611.935 (2024-Oct-28.435) 20.91 ± 3.48 4.80
2460614.886 (2024-Oct-31.386) 18.06 ± 0.36 5.16

Calibration: I = 27.40 - 2.5 log10(ΔF + 5053.59)

Single lens fit parameters

tmax =JD 2459411.58 ± 0.12 UT (2021-Jul-16.08)
tE =27.14 ± 3.14 days
u0 =0.5478 ± 0.1097
Ibase =17.96 ± 0.26

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice