Star · K3 V
HD 162020
HD 162020 is a main-sequence star of spectral type K3 V in the constellation Scorpius, 102.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 87330 |
|---|---|
| Constellation | Scorpius |
| Distance | 102.4 light-years (31.4 pc) |
| Apparent magnitude | magnitude 9.10 |
| Absolute magnitude | magnitude 6.62 |
| Spectral type | K3 V |
| Surface temperature | 4,720 K |
| Luminosity | 0.25 L☉ |
| Radius | 0.75 R☉ |
| Mass | 0.42 M☉ |
| Age | 6.0 billion years |
| Metallicity [Fe/H] | -0.10 |
| Right ascension (J2000) | 17h 50m 38.4s |
| Declination (J2000) | −40° 19′ 06″ |
| Space velocity (relative to the Sun) | 4.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.10. Visible from the whole Southern Hemisphere and north to latitude 50° N. South of latitude 50° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1924. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around HD 162020, the Sun would look like a star of magnitude 7.31, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Planets
- HD 162020 b 8.43-day orbit · 12.5 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.