Star · G3
HAT-P-28
HAT-P-28 is a main-sequence star of spectral type G3 in the constellation Andromeda, 1,309 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Andromeda |
|---|---|
| Distance | 1,309 light-years (401.3 pc) |
| Apparent magnitude | magnitude 13.10 |
| Absolute magnitude | magnitude 5.08 |
| Spectral type | G3 |
| Surface temperature | 5,680 K |
| Luminosity | 1.13 L☉ |
| Radius | 1.1 R☉ |
| Mass | 1.03 M☉ |
| Age | 6.1 billion years |
| Metallicity [Fe/H] | 0.12 |
| Right ascension (J2000) | 0h 52m 00.2s |
| Declination (J2000) | +34° 43′ 42″ |
| Space velocity (relative to the Sun) | 48.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.10. Visible from the whole Northern Hemisphere and south to latitude 55° S. North of latitude 55° 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 717. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
The Sun seen from there
From a planet around HAT-P-28, the Sun would look like a star of magnitude 12.85, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Planets
- HAT-P-28 b 3.26-day orbit · 13.6 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.