Star · B8V
HATS-70
HATS-70 is a main-sequence star of spectral type B8V in the constellation Canis Major, 4,346 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Canis Major |
|---|---|
| Distance | 4,346 light-years (1,333 pc) |
| Apparent magnitude | magnitude 12.20 |
| Absolute magnitude | magnitude 1.58 |
| Spectral type | B8V |
| Surface temperature | 7,930 K |
| Luminosity | 12 L☉ |
| Radius | 1.88 R☉ |
| Mass | 1.78 M☉ |
| Age | 0.8 billion years |
| Metallicity [Fe/H] | 0.04 |
| Right ascension (J2000) | 7h 16m 25.1s |
| Declination (J2000) | −31° 14′ 40″ |
| Space velocity (relative to the Sun) | 21.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.20. Visible from the whole Southern Hemisphere and north to latitude 59° N. South of latitude 59° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 4,346 years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 77 million years.
The Sun seen from there
From a planet around HATS-70, the Sun would look like a star of magnitude 15.45, in the direction where our sky has the constellation Lyra. It would be invisible to the naked eye.
Planets
- HATS-70 b 1.89-day orbit · 15.5 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.