16 Cyg B is 68.9 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G3 V star; the first was found in 1996 by radial velocity (Multiple Observatories).
Fly there in 3D16 Cyg B b takes 798.5 days to go round its star once.
16 Cyg B is one of 3 stars in its system: 16 Cyg A drawn from the Washington Double Star Catalog; the position of one more star is not catalogued, so it is not drawn.
| Spectral type | G3 V |
| Surface temperature | 5,750 K |
| Mass | 1.08 solar masses |
| Radius | 1.13 solar radii |
| Luminosity | 1.251 times the Sun |
| Apparent magnitude | 6.215 |
| Age | about 7.4 billion years |
| Distance from the Sun | 68.9 light-years (21.1 parsecs) |
| Position (J2000) | RA 295.4656°, Dec 50.5168° |
| Constellation | Cygnus |
16 Cyg A is a G1.5V star of magnitude 6, with a computed orbit. In 2025 it was 40″ from 16 Cyg B, at position angle 313° (Washington Double Star Catalog, 19418+5032 STFA 46 AB): 846 AU on the sky at this distance. The true distance can only be larger.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| 16 Cyg B b | 798.5 days | 1.660 AU | 13.5 R⊕ estimated | 565.74 M⊕ minimum | Radial Velocity, 1996 |
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.