TOI-6420 is 2,070 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 6,020 K star; the first was found in 2025 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-6420 b goes round its star every 6.96 days, 13 times as often as Mercury goes round the Sun.
| Surface temperature | 6,020 K |
| Mass | 1.165 solar masses |
| Radius | 1.312 solar radii |
| Luminosity | 2.05 times the Sun |
| Apparent magnitude | 12.994 |
| Age | about 4.4 billion years |
| Distance from the Sun | 2070.2 light-years (634.7 parsecs) |
| Position (J2000) | RA 125.5443°, Dec -19.1243° |
| Constellation | Puppis |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-6420 b | 6.96 days | 0.0753 AU | 11.938 R⊕ | 2606.2 M⊕ | Transit, 2025 |
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.