Star · G5
HD 178911 B
HD 178911 B is a main-sequence star of spectral type G5 in the constellation Lyra, 133.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 94075 |
|---|---|
| Constellation | Lyra |
| Distance | 133.6 light-years (41.0 pc) |
| Apparent magnitude | magnitude 7.97 |
| Absolute magnitude | magnitude 4.91 |
| Spectral type | G5 |
| Surface temperature | 5,590 K |
| Luminosity | 0.905 L☉ |
| Radius | 1.08 R☉ |
| Mass | 1.24 M☉ |
| Metallicity [Fe/H] | 0.24 |
| Right ascension (J2000) | 19h 09m 03.1s |
| Declination (J2000) | +34° 35′ 59″ |
| Space velocity (relative to the Sun) | 39.6 km/s |
In the sky
Too faint for the naked eye (magnitude 7.97); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 55° S. North of latitude 55° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1892. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around HD 178911 B, the Sun would look like a star of magnitude 7.89, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Planets
- HD 178911 B b 71.5-day orbit · 12.6 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 17 Lyr 10.4 light-years
- HIP 92916 12.9 light-years
- HIP 93843 14.0 light-years
- 2MASSW J1841086+311727 16.2 light-years
- HIP 93427 16.6 light-years
- Gl 761.1 17.5 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.