Star · G1 V
HD 10180
HD 10180 is a main-sequence star of spectral type G1 V in the constellation Hydrus, 127.1 light-years from the Sun. It is orbited by 6 confirmed exoplanet(s).
| Other names | HIP 7599 |
|---|---|
| Constellation | Hydrus |
| Distance | 127.1 light-years (39.0 pc) |
| Apparent magnitude | magnitude 7.33 |
| Absolute magnitude | magnitude 4.38 |
| Spectral type | G1 V |
| Surface temperature | 5,910 K |
| Luminosity | 1.49 L☉ |
| Radius | 1.11 R☉ |
| Mass | 1.06 M☉ |
| Age | 4.3 billion years |
| Metallicity [Fe/H] | 0.08 |
| Right ascension (J2000) | 1h 37m 53.6s |
| Declination (J2000) | −60° 30′ 42″ |
| Space velocity (relative to the Sun) | 35.6 km/s |
In the sky
Too faint for the naked eye (magnitude 7.33); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 29° N. South of latitude 29° 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 1899. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around HD 10180, the Sun would look like a star of magnitude 7.78, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Planets
- HD 10180 c 5.76-day orbit
- HD 10180 d 16.4-day orbit
- HD 10180 e 49.7-day orbit · 5.39 R⊕
- HD 10180 f 123-day orbit · 5.24 R⊕
- HD 10180 g 605-day orbit
- HD 10180 h 2,210-day orbit · 9.4 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 7387 7.08 light-years
- WISEA J013217.78-581825.9 8.15 light-years
- 2MASS J01062285-5933185 12.2 light-years
- HIP 6483 13.4 light-years
- HIP 10938 13.7 light-years
- 2MASS J02235464-5815067 14.2 light-years
- DENIS J0116529-645557 14.4 light-years
- Achernar 14.5 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.
