HD 11964 is 109 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G9 V CN+1 star; the first was found in 2005 by radial velocity (W. M. Keck Observatory).
Fly there in 3DHD 11964 c goes round its star every 37.9 days, 2.3 times as often as Mercury goes round the Sun.
HD 11964 is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.
| Spectral type | G9 V CN+1 |
| Surface temperature | 5,303 K |
| Mass | 0.91 solar masses |
| Radius | 2.00971 solar radii |
| Luminosity | 2.878 times the Sun |
| Apparent magnitude | 6.41525 |
| Age | about 7.45 billion years |
| Distance from the Sun | 109.4 light-years (33.5 parsecs) |
| Position (J2000) | RA 29.2884°, Dec -10.2435° |
| Constellation | Cetus |
HD 11964 B is a K7 star of magnitude 11.11, judged a true companion. In 2016 it was 29.7″ from HD 11964, at position angle 134° (Washington Double Star Catalog, 01572-1015 GAL 315): 996 AU on the sky at this distance. The true distance can only be larger.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 11964 c | 37.9 days | 0.229 AU | 5.38 R⊕ estimated | 25 M⊕ minimum | Radial Velocity, 2008 |
| HD 11964 b | 5.3 years | 3.160 AU | 14.1 R⊕ estimated | 198 M⊕ minimum | Radial Velocity, 2005 |
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.