Star · F2III
HD 2685
HD 2685 is a giant star of spectral type F2III in the constellation Hydrus, 643.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Hydrus |
|---|---|
| Distance | 643.7 light-years (197.4 pc) |
| Apparent magnitude | magnitude 9.65 |
| Absolute magnitude | magnitude 3.17 |
| Spectral type | F2III |
| Surface temperature | 6,800 K |
| Luminosity | 4.66 L☉ |
| Radius | 1.56 R☉ |
| Mass | 1.43 M☉ |
| Age | 1.3 billion years |
| Metallicity [Fe/H] | 0.02 |
| Right ascension (J2000) | 0h 29m 18.9s |
| Declination (J2000) | −76° 18′ 15″ |
| Space velocity (relative to the Sun) | 7.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.65. Visible from the whole Southern Hemisphere and north to latitude 14° N. South of latitude 14° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1382. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around HD 2685, the Sun would look like a star of magnitude 11.31, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Planets
- HD 2685 b 4.13-day orbit · 16.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.