Gl 725 A is 11.5 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M3 star; the first was found in 2025 by radial velocity (Multiple Observatories).
Fly there in 3DGl 725 A b goes round its star every 11.2 days, 8 times as often as Mercury goes round the Sun.
Gl 725 A is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.
| Spectral type | M3 |
| Surface temperature | 3,433 K |
| Mass | 0.33 solar masses |
| Radius | 0.351 solar radii |
| Luminosity | 0.01552 times the Sun |
| Apparent magnitude | 8.94 |
| Age | about 6.2 billion years |
| Distance from the Sun | 11.5 light-years (3.5 parsecs) |
| Position (J2000) | RA 280.6834°, Dec 59.6381° |
| Constellation | Draco |
Gl 725 B is a M3.5 star of magnitude 9.96, with a computed orbit. In 2025 it was 10.9″ from Gl 725 A, at position angle 185° (Washington Double Star Catalog, 18428+5938 STF2398 AB): 38.4 AU on the sky at this distance. The true distance can only be larger.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Gl 725 A b | 11.2 days | 0.0680 AU | 1.48 R⊕ estimated | 2.78 M⊕ minimum | Radial Velocity, 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.
For a star of 3,433 K, 0.016 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.13 to 0.25 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 11 years ago, within living memory.