HAT-P-11 is 123 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K4 star; the first was found in 2010 by transit (HATNet).
Fly there in 3DHAT-P-11 b goes round its star every 4.89 days, 18 times as often as Mercury goes round the Sun.
| Spectral type | K4 |
| Surface temperature | 4,653 K |
| Mass | 0.811 solar masses |
| Radius | 0.683 solar radii |
| Luminosity | 0.271 times the Sun |
| Apparent magnitude | 9.46 |
| Age | about 2.69 billion years |
| Distance from the Sun | 123.2 light-years (37.8 parsecs) |
| Position (J2000) | RA 297.7102°, Dec 48.0819° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HAT-P-11 b | 4.89 days | 0.0526 AU | 4.36 R⊕ | 25 M⊕ | Transit, 2010 |
| HAT-P-11 c | 9.2 years | 4.100 AU | 13.2 R⊕ estimated | 851.78 M⊕ | Radial Velocity, 2018 |
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.