Star · K4/5V
HIP 56998
HIP 56998 is a main-sequence star of spectral type K4/5V in the constellation Centaurus, 41.7 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | Gl 435 |
|---|---|
| Constellation | Centaurus |
| Distance | 41.7 light-years (12.8 pc) |
| Apparent magnitude | magnitude 7.77 |
| Absolute magnitude | magnitude 7.24 |
| Spectral type | K4/5V |
| Surface temperature | 4,680 K |
| Luminosity | 0.165 L☉ |
| Radius | 0.63 R☉ |
| Mass | 0.653 M☉ |
| Age | 6.9 billion years |
| Metallicity [Fe/H] | -0.34 |
| Right ascension (J2000) | 11h 41m 02.5s |
| Declination (J2000) | −44° 24′ 19″ |
| Space velocity (relative to the Sun) | 44.7 km/s |
In the sky
Too faint for the naked eye (magnitude 7.77); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 46° N. South of latitude 46° 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 1984. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 740 thousand years.
The Sun seen from there
From a planet around HIP 56998, the Sun would look like a star of magnitude 5.36, in the direction where our sky has the constellation Andromeda. It would be visible to the naked eye.
Planets
- HD 101581 b 4.47-day orbit · 0.956 R⊕
- HD 101581 c 6.2-day orbit · 0.99 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASSW J1155395-372735 6.12 light-years
- Gl 431 7.06 light-years
- 2MASS J11220826-3512363 7.52 light-years
- Gl 438 7.64 light-years
- GJ 1147 8.47 light-years
- GJ 422 9.91 light-years
- Gl 422 10.1 light-years
- GJ 1158 10.3 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.