AT2021ueyL Overview

AT2021ueyL 3680.00 K

AT2021ueyL b

Overview System Parameters Nearby Data Legend

Architecture: AT2021ueyL; AT2021ueyL

Other Data: Bibliography 1; Nearby Data 3

Discovery Data

Host	Planet	Method	Year	Reference	Disposition
AT2021ueyL	AT2021ueyL b	Microlensing	2025	Ban et al. 2025	Confirmed Planet

AT2021ueyL Stellar Parameters (1 Solutions)

RA: 21h38m10.81s

Dec: +26d27m59.65s

Distance: 1040+740-440
pc

Parallax: ---

Ecliptic Latitude: 37.98481 deg

Ecliptic Longitude: 337.69117 deg

Galactic Latitude: -19.06415 deg

Galactic Longitude: 77.91374 deg

Total Proper Motion: ---

Proper Motion (RA): ---

Proper Motion (Dec): ---

Photometry

Tools: IRSA Finding Chart; Stellar Hosts

Source	Ban et al. 2025
T_eff (K)	3680+307-204
M_✶ (M_⦿)	0.49+0.16-0.18
Sp. T	M V

AT2021ueyL b Planetary Parameters (1 Solutions)

Status: Confirmed Planet
Detected By: Microlensing

Tools: Microlensing

Source	Ban et al. 2025
M_p (M_⨁)	426+143-159
M_p (M_Jup)	1.34+0.45-0.50
P (days)	4168.69+2910.76-1713.98
a (au)	4.01+1.68-1.34

Nearby Data (3 Data Types within 30 arcseconds)

Known Objects: 1 Confirmed Planets; 2 2MASS Point Source Catalog

Data Files: 1 Associated Literature Data

Bibliography (1 References)

AT2021uey: A planetary microlensing event outside the Galactic bulge
Ban et al. 2025 | Reference Overview

System

Star

Confirmed

Candidate

False Positive Planet

Controversial

False Positive

Aliases

Data Access

Transit Prediction Service

Time Series

Kepler | K2

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