Star · F5V
HD 143811 A
HD 143811 A is a main-sequence star of spectral type F5V in the constellation Lupus, 446.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 78663 |
|---|---|
| Constellation | Lupus |
| Distance | 446.4 light-years (136.9 pc) |
| Apparent magnitude | magnitude 8.91 |
| Absolute magnitude | magnitude 3.23 |
| Spectral type | F5V |
| Surface temperature | 6,790 K |
| Luminosity | 4.38 L☉ |
| Radius | 1.68 R☉ |
| Mass | 1.32 M☉ |
| Age | 0.0 billion years |
| Right ascension (J2000) | 16h 03m 33.4s |
| Declination (J2000) | −30° 08′ 13″ |
| Space velocity (relative to the Sun) | 18.9 km/s |
In the sky
Too faint for the naked eye (magnitude 8.91); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 60° N. South of latitude 60° 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 1580. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.9 million years.
The Sun seen from there
From a planet around HD 143811 A, the Sun would look like a star of magnitude 10.51, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Planets
- HD 143811 AB b 117,000-day orbit · 15.7 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.