TOI-1669 is 363 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,497 K star; the first was found in 2023 by radial velocity (W. M. Keck Observatory).
Fly there in 3DTOI-1669 c goes round its star every 2.68 days, 33 times as often as Mercury goes round the Sun.
| Surface temperature | 5,497 K |
| Mass | 0.9867 solar masses |
| Radius | 1.0561 solar radii |
| Luminosity | 0.921 times the Sun |
| Apparent magnitude | 10.218 |
| Age | about 7.7 billion years |
| Distance from the Sun | 362.9 light-years (111.3 parsecs) |
| Position (J2000) | RA 45.9565°, Dec 83.5874° |
| Constellation | Cepheus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-1669 c | 2.68 days | 0.0376 AU | 2.2964 R⊕ | 13 M⊕ | Transit, 2024 |
| TOI-1669 b | 500.0 days | 1.270 AU | 14.1 R⊕ estimated | 191 M⊕ minimum | Radial Velocity, 2023 |
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.