TOI-1728 b
A confirmed exoplanet orbiting TOI-1728.
Compared with Earth
- Size
- About 5.1 times Earth's width.
- Mass
- About 27 times Earth's mass.
- Temperature
- About 494 °C (921 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 58 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 3.5 Earth days.
Planet
- Radius
- 5.05 × Earth
- Mass
- 26.78 × Earth
- Density
- 1.14 g/cm³
- Equilibrium temperature
- 767 K
- Starlight received
- 57.78 × Earth
- Orbital period
- 3.492 days
- Average distance from its star
- 0.0391 AU
Star
- Host star
- TOI-1728
- Spectral class
- K — orange dwarf
- Surface temperature
- 3,980 K
- Radius
- 0.6243 × Sun
- Mass
- 0.646 × Sun
- Age
- 7.1 billion years
System
- Distance from Earth
- 198.3 light-years (60.8 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.