TOI-1728 is 198 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M0 star; the first was found in 2020 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-1728 b goes round its star every 3.49 days, 25 times as often as Mercury goes round the Sun.
| Spectral type | M0 |
| Surface temperature | 3,980 K |
| Mass | 0.646 solar masses |
| Radius | 0.6243 solar radii |
| Luminosity | 0.088 times the Sun |
| Apparent magnitude | 12.39 |
| Age | about 7.1 billion years |
| Distance from the Sun | 198.3 light-years (60.8 parsecs) |
| Position (J2000) | RA 120.6117°, Dec 64.7972° |
| Constellation | Camelopardalis |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-1728 b | 3.49 days | 0.0391 AU | 5.05 R⊕ | 26.78 M⊕ | Transit, 2020 |
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.