Star · K5
HD 29985
HD 29985 is a main-sequence star of spectral type K5 in the constellation Caelum, 101.9 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 21865 |
|---|---|
| Constellation | Caelum |
| Distance | 101.9 light-years (31.2 pc) |
| Apparent magnitude | magnitude 9.98 |
| Absolute magnitude | magnitude 7.51 |
| Spectral type | K5 |
| Surface temperature | 4,680 K |
| Luminosity | 0.142 L☉ |
| Radius | 0.575 R☉ |
| Mass | 0.75 M☉ |
| Metallicity [Fe/H] | -0.22 |
| Right ascension (J2000) | 4h 42m 05.3s |
| Declination (J2000) | −33° 55′ 11″ |
| Space velocity (relative to the Sun) | 68.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.98. Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° 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 1924. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around HD 29985, the Sun would look like a star of magnitude 7.30, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Planets
- HD 29985 b 20,600-day orbit · 12.8 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 22602 5.43 light-years
- HIP 22059 5.85 light-years
- HIP 21733 6.67 light-years
- β Cae 9.43 light-years
- HIP 20302 10.3 light-years
- GJ 3300 10.9 light-years
- WISEA J045900.42-285338.3 12.7 light-years
- 2MASS J05161597-3332046 13.5 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.