Mass
0.38 Msun
single adopted value
Unclassified star • 6480 pc
Records
1
literature rows
Planets
1
system count
References
2
distinct source labels
Approximate color
from effective temperature
Canonical Summary
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Ryu et al. 2023 • System source: Ryu et al. 2023
Mass
0.38 Msun
single adopted value
Distance
6480 pc
single adopted value
Planets
1
Stable across source rows
System Layout
1 planets linked to this host
Microlensing
Discovery
2023
Period
—
Radius
—
Mass
400.5 M⊕
Eq. Temp
—
KMT-2021-BLG-0909L is a star 21100 light-years away with a reported mass estimate of 0.38 solar masses, smaller than the Sun's. One planet orbits this host.
That planet, KMT-2021-BLG-0909L b, was discovered in 2023 by microlensing, a method that reveals a planet through the gravitational brightening of a background star. Its reported mass estimate is 400 Earth masses, larger than Earth's. No orbital period is reported for KMT-2021-BLG-0909L b.
Provenance
Evidence Summary
Rows
1
Stellar refs
1
System refs
1
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | 0.38 | — | — | — | — | 6480 | Ryu et al. 2023 | Ryu et al. 2023 |