Star · G8 IV (+ G)
HD 66428
HD 66428 is a main-sequence star of spectral type G8 IV (+ G) in the constellation Monoceros, 173.8 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 39417 |
|---|---|
| Constellation | Monoceros |
| Distance | 173.8 light-years (53.3 pc) |
| Apparent magnitude | magnitude 8.25 |
| Absolute magnitude | magnitude 4.62 |
| Spectral type | G8 IV (+ G) |
| Surface temperature | 5,720 K |
| Luminosity | 1.25 L☉ |
| Radius | 1.13 R☉ |
| Mass | 1.01 M☉ |
| Age | 3.5 billion years |
| Metallicity [Fe/H] | 0.23 |
| Right ascension (J2000) | 8h 03m 28.7s |
| Declination (J2000) | −1° 09′ 46″ |
| Space velocity (relative to the Sun) | 70.5 km/s |
In the sky
Too faint for the naked eye (magnitude 8.25); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1852. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around HD 66428, the Sun would look like a star of magnitude 8.46, in the direction where our sky has the constellation Aquila. It would be invisible to the naked eye.
Planets
- HD 66428 b 2,270-day orbit · 12.4 R⊕
- HD 66428 c 10,500-day orbit · 13.5 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 38853 10.7 light-years
- HIP 40732 14.7 light-years
- HIP 40613 16.7 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.