Star · G9 V
HD 147018
HD 147018 is a main-sequence star of spectral type G9 V in the constellation Triangulum Australe, 131.6 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 80250 |
|---|---|
| Constellation | Triangulum Australe |
| Distance | 131.6 light-years (40.4 pc) |
| Apparent magnitude | magnitude 8.30 |
| Absolute magnitude | magnitude 5.27 |
| Spectral type | G9 V |
| Surface temperature | 5,440 K |
| Luminosity | 0.712 L☉ |
| Radius | 0.938 R☉ |
| Mass | 0.927 M☉ |
| Age | 6.4 billion years |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 16h 23m 00.1s |
| Declination (J2000) | −61° 41′ 20″ |
| Space velocity (relative to the Sun) | 74.6 km/s |
In the sky
Too faint for the naked eye (magnitude 8.30); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 28° N. South of latitude 28° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1894. 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 147018, the Sun would look like a star of magnitude 7.86, in the direction where our sky has the constellation Camelopardalis. It would be invisible to the naked eye.
Planets
- HD 147018 b 44.2-day orbit · 13.4 R⊕
- HD 147018 c 1,010-day orbit · 12.7 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.