MOA 2023-BLG-091

Event Parameters

Internal ID:gb4-R-3-91247
Discovery date:2023-03-30T15:22:02
RA:17:53:05.04
Dec:-30:49:53.70
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
130868 17:53:04.91 -30:49:53.06 18.14 ± 0.14 2.35
130958 17:53:05.09 -30:49:56.99 16.29 ± 0.06 4.01
130979 17:53:05.14 -30:49:53.55 16.33 ± 0.10 0.82
131016 17:53:05.25 -30:49:55.23 17.50 ± 0.10 3.07
131037 17:53:05.27 -30:49:49.22 15.66 ± 0.14 4.66

Last 5 photometry measurements

Observation dateI magseeing
2460611.899 (2024-Oct-28.399) 16.37 ± 0.11 4.79
2460611.911 (2024-Oct-28.411) 16.20 ± 0.05 4.80
2460611.921 (2024-Oct-28.421) 16.30 ± 0.11 5.03
2460611.930 (2024-Oct-28.430) 16.26 ± 0.08 4.29
2460614.875 (2024-Oct-31.375) 16.25 ± 0.11 4.94

Calibration: I = 27.40 - 2.5 log10(ΔF + 26816.37)

Single lens fit parameters

tmax =JD 2460051.39 ± 0.02 UT (2023-Apr-16.89)
tE =34.52 ± 0.59 days
u0 =0.1890 ± 0.0038
Ibase =17.99 ± 0.23

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice