TOI-2587 A is 1,219 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,760 K star; the first was found in 2023 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-2587 A b goes round its star every 5.46 days, 16 times as often as Mercury goes round the Sun.
TOI-2587 A is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.
| Surface temperature | 5,760 K |
| Mass | 1.15 solar masses |
| Radius | 1.726 solar radii |
| Luminosity | 2.96 times the Sun |
| Apparent magnitude | 11.544 |
| Age | about 6.7 billion years |
| Distance from the Sun | 1218.8 light-years (373.7 parsecs) |
| Position (J2000) | RA 115.9317°, Dec -1.0733° |
| Constellation | Monoceros |
TOI-2587 B has no spectral type listed of magnitude 14, judged a true companion. In 2016 it was 8.9″ from TOI-2587 A, at position angle 112° (Washington Double Star Catalog, 07437-0104 KPP1136): 3,326 AU on the sky at this distance. The true distance can only be larger. Its colour is estimated from its brightness.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-2587 A b | 5.46 days | 0.0635 AU | 12.072 R⊕ | 69.287 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.