TOI-1789 is 747 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this F star; the first was found in 2021 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-1789 b goes round its star every 3.21 days, 27 times as often as Mercury goes round the Sun.
| Spectral type | F |
| Surface temperature | 5,991 K |
| Mass | 1.507 solar masses |
| Radius | 2.168 solar radii |
| Luminosity | 5.45 times the Sun |
| Apparent magnitude | 9.721 |
| Age | about 2.73 billion years |
| Distance from the Sun | 747.1 light-years (229.1 parsecs) |
| Position (J2000) | RA 142.7434°, Dec 26.5400° |
| Constellation | Leo |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-1789 b | 3.21 days | 0.0488 AU | 16.141 R⊕ | 222.48 M⊕ | Transit, 2021 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.