Star · K1 III
HD 25723
HD 25723 is a giant star of spectral type K1 III in the constellation Eridanus, 374.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 19011 |
|---|---|
| Constellation | Eridanus |
| Distance | 374.6 light-years (114.9 pc) |
| Apparent magnitude | magnitude 5.62 |
| Absolute magnitude | magnitude 0.32 |
| Spectral type | K1 III |
| Surface temperature | 4,770 K |
| Luminosity | 88 L☉ |
| Radius | 13.8 R☉ |
| Mass | 2.12 M☉ |
| Age | 1.0 billion years |
| Metallicity [Fe/H] | -0.03 |
| Right ascension (J2000) | 4h 04m 22.7s |
| Declination (J2000) | −12° 47′ 32″ |
| Space velocity (relative to the Sun) | 29.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.62). Visible from the whole Southern Hemisphere and north to latitude 77° N. South of latitude 77° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1651. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.6 million years.
The Sun seen from there
From a planet around HD 25723, the Sun would look like a star of magnitude 10.13, in the direction where our sky has the constellation Serpens. It would be invisible to the naked eye.
Planets
- HD 25723 b 457-day orbit · 13.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.