Star · G5
HD 168443
HD 168443 is a main-sequence star of spectral type G5 in the constellation Serpens, 127.4 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | GJ 4052 · HIP 89844 |
|---|---|
| Constellation | Serpens |
| Distance | 127.4 light-years (39.1 pc) |
| Apparent magnitude | magnitude 6.92 |
| Absolute magnitude | magnitude 3.96 |
| Spectral type | G5 |
| Surface temperature | 5,490 K |
| Luminosity | 2.41 L☉ |
| Radius | 1.71 R☉ |
| Mass | 0.98 M☉ |
| Age | 11.1 billion years |
| Metallicity [Fe/H] | 0.04 |
| Right ascension (J2000) | 18h 20m 03.9s |
| Declination (J2000) | −9° 35′ 45″ |
| Space velocity (relative to the Sun) | 66.2 km/s |
In the sky
Too faint for the naked eye (magnitude 6.92); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 80° N. 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 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 168443, the Sun would look like a star of magnitude 7.79, in the direction where our sky has the constellation Orion. It would be invisible to the naked eye.
Planets
- HD 168443 b 58.1-day orbit · 12.6 R⊕
- HD 168443 c 1,750-day orbit · 12.2 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.