KOI-55 is 4,015 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this B star; the first was found in 2011 by orbital brightness modulation (Kepler).
Fly there in 3DKOI-55 b goes round its star every 5.8 hours, 367 times as often as Mercury goes round the Sun.
| Spectral type | B |
| Surface temperature | 27,730 K |
| Mass | 0.496 solar masses |
| Radius | 0.203 solar radii |
| Luminosity | 22.91 times the Sun |
| Apparent magnitude | 15.154 |
| Distance from the Sun | 4015.1 light-years (1231.0 parsecs) |
| Position (J2000) | RA 296.3562°, Dec 41.0927° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| KOI-55 b disputed | 5.8 hours | 0.0060 AU | 0.759 R⊕ | 0.44 M⊕ | Orbital Brightness Modulation, 2011 |
| KOI-55 c disputed | 8.2 hours | 0.0076 AU | 0.867 R⊕ | 0.655 M⊕ | Orbital Brightness Modulation, 2011 |
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.