iot Dra is 102 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K2 III star; the first was found in 2002 by radial velocity (Lick Observatory).
Fly there in 3Diot Dra c takes 68.4 years to go round its star once.
| Spectral type | K2 III |
| Surface temperature | 4,504 K |
| Mass | 1.54 solar masses |
| Radius | 11.79 solar radii |
| Luminosity | 52.78 times the Sun |
| Apparent magnitude | 3.29668 |
| Age | about 2.65 billion years |
| Distance from the Sun | 102.2 light-years (31.3 parsecs) |
| Position (J2000) | RA 231.2323°, Dec 58.9661° |
| Constellation | Draco |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| iot Dra b | 510.9 days | 1.453 AU | 12.4 R⊕ estimated | 3756.7 M⊕ minimum | Radial Velocity, 2002 |
| iot Dra c | 68.4 years | 19.400 AU | 12.2 R⊕ estimated | 4958.1 M⊕ minimum | Radial Velocity, 2021 |
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 4,504 K, 53 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 7.36 to 13.60 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 102 years ago, around 1920.