The TOI-2015 System
TOI-2015 is a planetary system in the constellation Corona Borealis hosting 2 confirmed exoplanets, about 154 light-years from Earth.
Size Comparison: The Planets of TOI-2015
Planets without a measured radius are not shown.
TOI-2015: Star and Habitable Zone
TOI-2015
- Spectral type
- M4 +/- 0.5
- Surface temperature
- 3,297 K (Sun: 5,772 K)
- Mass
- 0.30 M☉
- Radius
- 0.33 R☉
- Luminosity
- 0.0322 L☉
- Age
- 5.5 billion years (Sun: 4.6)
Habitable zone of TOI-2015: 0.147–0.386 AU (conservative: 0.186–0.366 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
All 2 Planets in the TOI-2015 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| TOI-2015 b | Puffy Planet | 3.3 d | 3.31 R⊕ | — | 2023 |
| TOI-2015 c | Super Earth | 5.6 d | — | — | 2025 |
Discovery History
The first planet found here, TOI-2015 b, was discovered in 2023 using the transit method. The most recent addition, TOI-2015 c, followed in 2025.
- 2023 — TOI-2015 b (Transit)
- 2025 — TOI-2015 c (Transit Timing Variations)
Frequently Asked Questions About TOI-2015
How many planets does TOI-2015 have?
TOI-2015 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-2015 system habitable?
None of the known planets in TOI-2015 orbit within the star's habitable zone.
How far away is TOI-2015?
TOI-2015 is about 154 light-years from Earth in the constellation Corona Borealis.
Explore the TOI-2015 system in the app
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