TOI-3980 is 1,588 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,840 K star; the first was found in 2025 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-3980 b goes round its star every 3.61 days, 24 times as often as Mercury goes round the Sun.
| Surface temperature | 5,840 K |
| Mass | 1.24 solar masses |
| Radius | 1.626 solar radii |
| Luminosity | 2.77 times the Sun |
| Apparent magnitude | 12.549 |
| Age | about 4.7 billion years |
| Distance from the Sun | 1587.5 light-years (486.7 parsecs) |
| Position (J2000) | RA 12.8419°, Dec 59.5759° |
| Constellation | Cassiopeia |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-3980 b | 3.61 days | 0.0494 AU | 14.46 R⊕ | 187.52 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.