Star · A2
HAT-P-70
HAT-P-70 is a main-sequence star of spectral type A2 in the constellation Orion, 1,038 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Orion |
|---|---|
| Distance | 1,038 light-years (318.2 pc) |
| Apparent magnitude | magnitude 9.49 |
| Absolute magnitude | magnitude 1.98 |
| Spectral type | A2 |
| Surface temperature | 8,450 K |
| Luminosity | 16.7 L☉ |
| Radius | 1.86 R☉ |
| Mass | 1.89 M☉ |
| Age | 0.6 billion years |
| Metallicity [Fe/H] | -0.06 |
| Right ascension (J2000) | 4h 58m 12.6s |
| Declination (J2000) | +9° 59′ 53″ |
| Space velocity (relative to the Sun) | 23.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.49. Visible from the whole Northern Hemisphere and south to latitude 80° S. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 988. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 18 million years.
The Sun seen from there
From a planet around HAT-P-70, the Sun would look like a star of magnitude 12.34, in the direction where our sky has the constellation Ophiuchus. It would be invisible to the naked eye.
Planets
- HAT-P-70 b 2.74-day orbit · 21 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.