Star · F9V
HAT-P-46
HAT-P-46 is a main-sequence star of spectral type F9V in the constellation Serpens, 948.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Serpens |
|---|---|
| Distance | 948.3 light-years (290.7 pc) |
| Apparent magnitude | magnitude 12.00 |
| Absolute magnitude | magnitude 4.68 |
| Spectral type | F9V |
| Surface temperature | 6,120 K |
| Luminosity | 2.46 L☉ |
| Radius | 1.4 R☉ |
| Mass | 1.28 M☉ |
| Age | 2.5 billion years |
| Metallicity [Fe/H] | 0.30 |
| Right ascension (J2000) | 18h 01m 46.6s |
| Declination (J2000) | −2° 58′ 16″ |
| Space velocity (relative to the Sun) | 8.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.00. Visible from the whole Southern Hemisphere and north to latitude 87° N. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1078. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 17 million years.
The Sun seen from there
From a planet around HAT-P-46, the Sun would look like a star of magnitude 12.15, in the direction where our sky has the constellation Orion. It would be invisible to the naked eye.
Planets
- HAT-P-46 b 4.46-day orbit · 14.4 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.