Star · G0V
HD 457
HD 457 is a main-sequence star of spectral type G0V in the constellation Phoenix, 180.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 726 |
|---|---|
| Constellation | Phoenix |
| Distance | 180.4 light-years (55.3 pc) |
| Apparent magnitude | magnitude 7.72 |
| Absolute magnitude | magnitude 4.01 |
| Spectral type | G0V |
| Surface temperature | 6,110 K |
| Luminosity | 2.07 L☉ |
| Radius | 1.28 R☉ |
| Mass | 1.15 M☉ |
| Metallicity [Fe/H] | 0.34 |
| Right ascension (J2000) | 0h 08m 59.7s |
| Declination (J2000) | −39° 44′ 14″ |
| Space velocity (relative to the Sun) | 35.6 km/s |
In the sky
Too faint for the naked eye (magnitude 7.72); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 50° N. South of latitude 50° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1846. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around HD 457, the Sun would look like a star of magnitude 8.54, in the direction where our sky has the constellation Canes Venatici. It would be invisible to the naked eye.
Planets
- HD 457 b 20,300-day orbit · 11.9 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 1552 10.4 light-years
- HIP 599 11.0 light-years
- WISEA J003052.08-380829.6 15.9 light-years
- HIP 117513 16.6 light-years
- HIP 413 18.2 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.