---
title: "The TOI-1798 system"
url: "https://spacecatalog.org/system/toi-1798"
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 TOI-1798 system

TOI-1798 is a star in Canes Venatici, 369.1 ly away, with 2 known planets. Their orbits run from 0.0108 to 0.0750 AU. All of them were detected by transit.

## The planets, innermost first

| Planet | Orbit (AU) | Period | Radius | Mass | Equilibrium T |
| --- | --- | --- | --- | --- | --- |
| [.02](https://spacecatalog.org/object/toi-1798-02) | 0.0108 | 0.4378 d | 1.46 R⊕ | 5.6 M⊕ | 1936 K |
| [.01](https://spacecatalog.org/object/toi-1798-01) | 0.0750 | 8.022 d | 2.45 R⊕ | 6.5 M⊕ | 734 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 |
| --- | --- |
| MASS | 0.87 M☉ |
| RADIUS | 0.78 R☉ |
| SURFACE TEMPERATURE | 5165 K |
| LUMINOSITY | 0.39 L☉ |
| DISTANCE FROM EARTH | 369.1 ly |
| APPARENT MAGNITUDE | 11.36 |
| CONSTELLATION | Canes Venatici |
| STARS IN SYSTEM | 1 |

The star itself: https://spacecatalog.org/object/toi-1798

The page itself, with the orbits drawn: https://spacecatalog.org/system/toi-1798