Star · F7 V
HD 136118
HD 136118 is a main-sequence star of spectral type F7 V in the constellation Serpens, 164.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 74948 |
|---|---|
| Constellation | Serpens |
| Distance | 164.6 light-years (50.5 pc) |
| Apparent magnitude | magnitude 6.93 |
| Absolute magnitude | magnitude 3.41 |
| Spectral type | F7 V |
| Surface temperature | 6,100 K |
| Luminosity | 3.7 L☉ |
| Radius | 1.68 R☉ |
| Mass | 1.18 M☉ |
| Metallicity [Fe/H] | -0.05 |
| Right ascension (J2000) | 15h 18m 55.5s |
| Declination (J2000) | −1° 35′ 33″ |
| Space velocity (relative to the Sun) | 30.1 km/s |
In the sky
Too faint for the naked eye (magnitude 6.93); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 88° N. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1861. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around HD 136118, the Sun would look like a star of magnitude 8.35, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Planets
- HD 136118 b 1,190-day orbit · 12.3 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 74304 9.70 light-years
- HIP 74164 10.4 light-years
- 8 Ser 11.4 light-years
- HIP 76031 11.7 light-years
- 4 Ser 12.2 light-years
- HIP 75387 14.7 light-years
- HIP 76635 14.9 light-years
- ULAS J153653.80+015540.6 16.6 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.