Gaia-1 is 1,186 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,470 K star; the first was found in 2022 by transit (European Space Agency (ESA) Gaia Satellite).
Fly there in 3DGaia-1 b goes round its star every 3.05 days, 29 times as often as Mercury goes round the Sun.
| Surface temperature | 5,470 K |
| Mass | 0.949 solar masses |
| Radius | 0.952 solar radii |
| Luminosity | 0.6937 times the Sun |
| Apparent magnitude | 13.242 |
| Distance from the Sun | 1186.1 light-years (363.7 parsecs) |
| Position (J2000) | RA 90.6437°, Dec -0.5771° |
| Constellation | Orion |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Gaia-1 b | 3.05 days | 0.0405 AU | 13.776 R⊕ | 533.95 M⊕ | Transit, 2022 |
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 5,470 K, 0.69 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.81 to 1.43 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 1,186 years ago, around AD 840.