The TOI-1288 System
TOI-1288 is a planetary system in the constellation Cepheus hosting 2 confirmed exoplanets, about 375 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.
Size Comparison: The Planets of TOI-1288
Planets without a measured radius are not shown.
TOI-1288: Star and Habitable Zone
TOI-1288
- Surface temperature
- 5,388 K (Sun: 5,772 K)
- Mass
- 0.96 M☉
- Radius
- 0.96 R☉
- Luminosity
- 0.7000 L☉
- Age
- 6.5 billion years (Sun: 4.6)
Habitable zone of TOI-1288: 0.642–1.531 AU (conservative: 0.814–1.452 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-1288 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| TOI-1288 b | Neptune-like | 2.7 d | 4.97 R⊕ | 0.15 | 2022 |
| TOI-1288 c HZ | Cold Gas Giant | 416 d | — | 0.38 | 2022 |
Discovery History
The first planet found here, TOI-1288 b, was discovered in 2022 using the transit method.
- 2022 — TOI-1288 b (Transit)
- 2022 — TOI-1288 c (Radial Velocity)
Frequently Asked Questions About TOI-1288
How many planets does TOI-1288 have?
TOI-1288 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-1288 system habitable?
One planet in the system orbits within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.
How far away is TOI-1288?
TOI-1288 is about 375 light-years from Earth in the constellation Cepheus.
Explore the TOI-1288 system in the app
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