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2 known planets · 270.1 light years

TOI-2093

TOI-2093 is a orange dwarf (K5 V) 270.1 light years away, with 2 confirmed planets. Distances and orbital speeds are to scale; the star and planets are enlarged so you can see them.

Day 0
habitable zone (estimate)planet orbits

Green band: where liquid water could exist on a planet's surface. Drag to turn the system, pinch or scroll to zoom.

The star

The star

TOI-2093

Type
K5 V
Surface
≈ 4,426 K
Size
0.73 × the Sun
Mass
0.74 × the Sun
Brightness
0.184 × the Sun
Habitable zone
0.344–0.852 AU

The planets

TOI-2093

TOI-2093 b

Year
12.84 days
Distance from star
0.097 AU
Mass
at least 11 Earths
Size
3.2 × Earth
Temperature
≈ 535 K (+262 °C)
Found
2025, radial velocity (Calar Alto Observatory)
Too hot
TOI-2093

TOI-2093 c

Year
53.81 days
Distance from star
0.257 AU
Mass
16 Earths
Size
2.3 × Earth
Temperature
≈ 329 K (+56 °C)
Found
2025, transit (Transiting Exoplanet Survey Satellite (TESS))
Outside the habitable zone

Masses found by the wobble method are minimums, because the orbit's tilt is unknown. Temperatures are equilibrium estimates for a bare planet, before any atmosphere.

How we know

The wobble

The planet tugs its star back and forth. Spectrographs measure the tiny shift in the star's light, which gives the planet's year and a minimum mass.

The shadow

The planet passes in front of its star and dims it by a fraction of a percent, every orbit. The dip gives the planet's size and year.

Sources

  1. Planet and star parameters: NASA Exoplanet Archive, Planetary Systems Composite Parameters, retrieved 1 Nov 2026. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.
  2. Position: HYG Database v4.1 (CC BY-SA 4.0).
  3. Habitable zone: a simple estimate from the star's brightness (√L × 0.95 to 1.67 AU), shown as a guide.
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