AT2021ueyL Overview

AT2021ueyL 3680.00 K

AT2021ueyL b

Overview Parameters Nearby Data Bibliography 1 Legend Expand All

AT2021ueyL Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
AT2021ueyL
AT2021ueyL b	4168.69 d	425.89 M_⨁	Microlensing	2025	Ban et al. 2025	Confirmed Planet

AT2021ueyL Stellar Parameters (1 Solution)

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: Planetary Systems; 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 Solution)

Status: Confirmed Planet

Detected By: Microlensing

Tools: Planetary Systems; 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 (within 30 arcseconds) Browse Nearby Data

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

Data Files: 1 Associated Literature Data

Bibliography (1 Reference)

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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