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Stellar HostProfile

KMT-2024-BLG-1209L

K3 V • 3930 pc

Records

2

literature rows

Planets

1

system count

References

2

distinct source labels

Approximate color

from effective temperature

Canonical Summary

Adopted host values from one source row

Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.

Stellar source: Han et al. 2025 • System source: Han et al. 2025

Mass

0.77 Msun

single adopted value

2 values • 1 distinct

Distance

3930 pc

single adopted value

2 values • 1 distinct

Spectral Type

K3 V

Consistent across records

K3 V (2)

Planets

1

Stable across source rows

1

System Layout

Known planets

1 planets linked to this host

KMT-2024-BLG-1209L b: A Massive Microlensing World

KMT-2024-BLG-1209L is a K3 V star, a main-sequence dwarf in the K spectral class, located roughly 12,800 light-years from Earth. Its mass is 0.77 solar masses. One planet has been reported orbiting this host.

That planet, KMT-2024-BLG-1209L b, was discovered by microlensing in 2025. Its reported mass estimate is 839 Earth masses, which is larger than Earth’s and roughly 2.64 times Jupiter’s mass.

No orbital period is reported for KMT-2024-BLG-1209L b.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

2

Stellar refs

1

System refs

1

Distancestable

2 values • 1 distinct

Massstable

2 values • 1 distinct

Spectral Typestable

2 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
—0.77———K3 V3930Han et al. 2025Han et al. 2025
—0.77———K3 V3930Han et al. 2025Han et al. 2025