Star · G7
HAT-P-51
HAT-P-51 is a main-sequence star of spectral type G7 in the constellation Pisces, 1,435 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Pisces |
|---|---|
| Distance | 1,435 light-years (440.1 pc) |
| Apparent magnitude | magnitude 13.51 |
| Absolute magnitude | magnitude 5.29 |
| Spectral type | G7 |
| Surface temperature | 5,450 K |
| Luminosity | 0.79 L☉ |
| Radius | 0.995 R☉ |
| Mass | 0.961 M☉ |
| Age | 8.1 billion years |
| Metallicity [Fe/H] | 0.30 |
| Right ascension (J2000) | 1h 24m 15.6s |
| Declination (J2000) | +32° 48′ 39″ |
| Space velocity (relative to the Sun) | 39.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.51. Visible from the whole Northern Hemisphere and south to latitude 57° S. North of latitude 57° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 591. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 25 million years.
The Sun seen from there
From a planet around HAT-P-51, the Sun would look like a star of magnitude 13.05, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Planets
- HAT-P-51 b 4.22-day orbit · 13.5 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.