Star · G0
HD 155358
HD 155358 is a main-sequence star of spectral type G0 in the constellation Hercules, 142.3 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 83949 |
|---|---|
| Constellation | Hercules |
| Distance | 142.3 light-years (43.6 pc) |
| Apparent magnitude | magnitude 7.28 |
| Absolute magnitude | magnitude 4.08 |
| Spectral type | G0 |
| Surface temperature | 5,900 K |
| Luminosity | 1.99 L☉ |
| Radius | 1.38 R☉ |
| Mass | 0.92 M☉ |
| Age | 10.7 billion years |
| Metallicity [Fe/H] | -0.51 |
| Right ascension (J2000) | 17h 09m 34.6s |
| Declination (J2000) | +33° 21′ 21″ |
| Space velocity (relative to the Sun) | 64.7 km/s |
In the sky
Too faint for the naked eye (magnitude 7.28); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 57° S. North of latitude 57° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1884. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
The Sun seen from there
From a planet around HD 155358, the Sun would look like a star of magnitude 8.03, in the direction where our sky has the constellation Columba. It would be invisible to the naked eye.
Planets
- HD 155358 b 194-day orbit · 13.8 R⊕
- HD 155358 c 392-day orbit · 13.9 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J17120142+3108217 5.80 light-years
- 2MASSI J1656188+283506 14.7 light-years
- TOI-5997 15.5 light-years
- HIP 85850 15.7 light-years
- HIP 83630 15.9 light-years
- HIP 82030 16.1 light-years
- HIP 83274 16.8 light-years
- HIP 85209 16.9 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.