TOI-4427 is 647 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,347 K star; the first was found in 2026 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-4427 b goes round its star every 4.62 days, 19 times as often as Mercury goes round the Sun.
| Surface temperature | 5,347 K |
| Mass | 0.9 solar masses |
| Radius | 0.89 solar radii |
| Luminosity | 0.67 times the Sun |
| Apparent magnitude | 11.983 |
| Age | about 7.9 billion years |
| Distance from the Sun | 646.6 light-years (198.3 parsecs) |
| Position (J2000) | RA 135.0493°, Dec 72.1477° |
| Constellation | Ursa Major |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-4427 b | 4.62 days | 0.0539 AU | 13.092 R⊕ | 87.721 M⊕ | Transit, 2026 |
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.