---
title: "The KMT-2024-BLG-0404L system"
url: "https://spacecatalog.org/system/kmt-2024-blg-0404l"
release: "DR1"
licence: "No licence stated; acknowledgement requested"
citation: "This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Cite Christiansen et al. (2025), Planetary Science Journal (doi:10.3847/PSJ/ade3c2), and the literature reference given with each value."
---

# The KMT-2024-BLG-0404L system

KMT-2024-BLG-0404L is an M red star in Sagittarius, 23 516 ly away, with 2 known planets. All of them were detected by microlensing.

## The planets, innermost first

| Planet | Orbit (AU) | Period | Radius | Mass | Equilibrium T |
| --- | --- | --- | --- | --- | --- |
| [b](https://spacecatalog.org/object/kmt-2024-blg-0404l-b) | 0.850 | — | 11.90 R⊕ | 8660 M⊕ | — |
| [c](https://spacecatalog.org/object/kmt-2024-blg-0404l-c) | — | — | 4.33 R⊕ | 17.3 M⊕ | — |

1 with no published orbit, sorted last.

Every figure is the planet's composite parameter from the [NASA Exoplanet Archive (Planetary Systems Composite Parameters)](https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PSCompPars), one consistent set per world. Semi-major axes are orbits about the star, not distances from Earth.

This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Cite Christiansen et al. (2025), Planetary Science Journal (doi:10.3847/PSJ/ade3c2), and the literature reference given with each value.

## The host star

| Quantity | Value |
| --- | --- |
| CLASS | M red star |
| SPECTRAL TYPE | M |
| MASS | 0.09 M☉ |
| DISTANCE FROM EARTH | 23 516 ly |
| CONSTELLATION | Sagittarius |
| STARS IN SYSTEM | 1 |

The star itself: https://spacecatalog.org/object/kmt-2024-blg-0404l

The page itself, with the orbits drawn: https://spacecatalog.org/system/kmt-2024-blg-0404l