LTT 9779 b
A confirmed exoplanet orbiting LTT 9779.
Compared with Earth
- Size
- About 4.7 times Earth's width.
- Mass
- About 29 times Earth's mass.
- Temperature
- About 1,705 °C (3,101 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 19 hours.
Planet
- Radius
- 4.72 × Earth
- Mass
- 29.32 × Earth
- Density
- 1.536 g/cm³
- Equilibrium temperature
- 1,978 K
- Starlight received
- Unknown
- Orbital period
- 0.7921 days
- Average distance from its star
- 0.01679 AU
Star
- Host star
- LTT 9779
- Spectral class
- G — sun-like
- Surface temperature
- 5,443 K
- Radius
- 0.949 × Sun
- Mass
- 1.02 × Sun
- Age
- 2 billion years
System
- Distance from Earth
- 262.4 light-years (80.44 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2020
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.