---
title: "The GJ 3053 system"
url: "https://spacecatalog.org/system/gliese-gj-3053"
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 GJ 3053 system

GJ 3053 is an M red star in Cetus, 45.30 ly away, with 2 known planets. Their orbits run from 0.0270 to 0.0946 AU. All of them were detected by transit.

## The planets, innermost first

| Planet | Orbit (AU) | Period | Radius | Mass | Equilibrium T |
| --- | --- | --- | --- | --- | --- |
| [LHS 1140 c](https://spacecatalog.org/object/lhs-1140-c) | 0.0270 | 3.778 d | 1.27 R⊕ | 1.91 M⊕ | 422 K |
| [LHS 1140 b](https://spacecatalog.org/object/lhs-1140-b) | 0.0946 | 24.74 d | 1.73 R⊕ | 5.6 M⊕ | 226 K |

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 |
| LUMINOSITY | 0.000351 L☉ |
| DISTANCE FROM EARTH | 45.30 ly |
| APPARENT MAGNITUDE | 14.20 |
| CONSTELLATION | Cetus |

The star itself: https://spacecatalog.org/object/gliese-gj-3053

The page itself, with the orbits drawn: https://spacecatalog.org/system/gliese-gj-3053