TOI-3819 is 1,820 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,859 K star; the first was found in 2023 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-3819 b goes round its star every 3.24 days, 27 times as often as Mercury goes round the Sun.
| Surface temperature | 5,859 K |
| Mass | 1.242 solar masses |
| Radius | 1.538 solar radii |
| Luminosity | 2.51 times the Sun |
| Apparent magnitude | 12.542 |
| Age | about 4.5 billion years |
| Distance from the Sun | 1820.4 light-years (558.1 parsecs) |
| Position (J2000) | RA 121.8633°, Dec 29.3886° |
| Constellation | Gemini |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-3819 b | 3.24 days | 0.0461 AU | 13.137 R⊕ | 352.79 M⊕ | Transit, 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.