Star · K4
HAT-P-12
HAT-P-12 is a main-sequence star of spectral type K4 in the constellation Canes Venatici, 465.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Canes Venatici |
|---|---|
| Distance | 465.6 light-years (142.8 pc) |
| Apparent magnitude | magnitude 12.67 |
| Absolute magnitude | magnitude 6.90 |
| Spectral type | K4 |
| Surface temperature | 4,650 K |
| Luminosity | 0.21 L☉ |
| Radius | 0.701 R☉ |
| Mass | 0.733 M☉ |
| Age | 2.5 billion years |
| Metallicity [Fe/H] | -0.29 |
| Right ascension (J2000) | 13h 57m 33.3s |
| Declination (J2000) | +43° 29′ 36″ |
| Space velocity (relative to the Sun) | 96.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.67. Visible from the whole Northern Hemisphere and south to latitude 47° S. North of latitude 47° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1560. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 8.3 million years.
The Sun seen from there
From a planet around HAT-P-12, the Sun would look like a star of magnitude 10.60, in the direction where our sky has the constellation Phoenix. It would be invisible to the naked eye.
Planets
- HAT-P-12 b 3.21-day orbit · 10.7 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.