HAT-P-66 is 3,051 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G0 star; the first was found in 2016 by transit (HATNet).
Fly there in 3DHAT-P-66 b goes round its star every 2.97 days, 30 times as often as Mercury goes round the Sun.
| Spectral type | G0 |
| Surface temperature | 6,002 K |
| Mass | 1.255 solar masses |
| Radius | 1.881 solar radii |
| Luminosity | 4.12 times the Sun |
| Apparent magnitude | 13.014 |
| Age | about 4.66 billion years |
| Distance from the Sun | 3051.0 light-years (935.4 parsecs) |
| Position (J2000) | RA 150.5726°, Dec 53.9508° |
| Constellation | Ursa Major |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HAT-P-66 b | 2.97 days | 0.0436 AU | 17.822 R⊕ | 248.86 M⊕ | Transit, 2016 |
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.