Star · G8 III
HD 102888
HD 102888 is a giant star of spectral type G8 III in the constellation Hydra, 423.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 57749 |
|---|---|
| Constellation | Hydra |
| Distance | 423.1 light-years (129.7 pc) |
| Apparent magnitude | magnitude 6.48 |
| Absolute magnitude | magnitude 0.92 |
| Spectral type | G8 III |
| Surface temperature | 4,990 K |
| Luminosity | 41.3 L☉ |
| Radius | 8.6 R☉ |
| Mass | 2.42 M☉ |
| Metallicity [Fe/H] | 0.07 |
| Right ascension (J2000) | 11h 50m 37.2s |
| Declination (J2000) | −27° 16′ 40″ |
| Space velocity (relative to the Sun) | 51.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.48). Visible from the whole Southern Hemisphere and north to latitude 63° N. South of latitude 63° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1603. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.5 million years.
The Sun seen from there
From a planet around HD 102888, the Sun would look like a star of magnitude 10.39, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Planets
- HD 102888 b 252-day orbit · 12.8 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.