Star · G1 V
HD 147873
HD 147873 is a main-sequence star of spectral type G1 V in the constellation Scorpius, 359.2 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 80486 |
|---|---|
| Constellation | Scorpius |
| Distance | 359.2 light-years (110.1 pc) |
| Apparent magnitude | magnitude 7.96 |
| Absolute magnitude | magnitude 2.75 |
| Spectral type | G1 V |
| Surface temperature | 5,970 K |
| Luminosity | 5.99 L☉ |
| Radius | 2.29 R☉ |
| Mass | 1.38 M☉ |
| Age | 4.0 billion years |
| Metallicity [Fe/H] | 0.03 |
| Right ascension (J2000) | 16h 25m 45.2s |
| Declination (J2000) | −33° 34′ 02″ |
| Space velocity (relative to the Sun) | 27.6 km/s |
In the sky
Too faint for the naked eye (magnitude 7.96); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° 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 1667. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.4 million years.
The Sun seen from there
From a planet around HD 147873, the Sun would look like a star of magnitude 10.04, in the direction where our sky has the constellation Perseus. It would be invisible to the naked eye.
Planets
- HD 147873 b 117-day orbit · 12.8 R⊕
- HD 147873 c 492-day orbit · 13.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.