Star · G9 V CN+1
HD 11964
HD 11964 is a main-sequence star of spectral type G9 V CN+1 in the constellation Cetus, 109.5 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | Gl 81.1A · HIP 9094 |
|---|---|
| Constellation | Cetus |
| Distance | 109.5 light-years (33.6 pc) |
| Apparent magnitude | magnitude 6.42 |
| Absolute magnitude | magnitude 3.79 |
| Spectral type | G9 V CN+1 |
| Surface temperature | 5,300 K |
| Luminosity | 2.88 L☉ |
| Radius | 2.01 R☉ |
| Mass | 0.91 M☉ |
| Age | 7.5 billion years |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 1h 57m 09.6s |
| Declination (J2000) | −10° 14′ 33″ |
| Space velocity (relative to the Sun) | 70.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.42). Visible from the whole Southern Hemisphere and north to latitude 80° N. South of latitude 80° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1917. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around HD 11964, the Sun would look like a star of magnitude 7.46, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Planets
- HD 11964 c 37.9-day orbit · 5.38 R⊕
- HD 11964 b 1,950-day orbit · 14.1 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 81.1B 0.09 light-years
- HIP 8361 11.4 light-years
- CWISE J014611.20-050850.0 11.9 light-years
- 2MASS J01414839-1601196 13.3 light-years
- HIP 7776 14.2 light-years
- GJ 3127 14.6 light-years
- HIP 11029 16.4 light-years
- HIP 8881 16.4 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.