Star · F7
Nyamien
Nyamien is a main-sequence star of spectral type F7 in the constellation Centaurus, 934.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | WASP-15 |
|---|---|
| Constellation | Centaurus |
| Distance | 934.8 light-years (286.6 pc) |
| Apparent magnitude | magnitude 11.02 |
| Absolute magnitude | magnitude 3.73 |
| Spectral type | F7 |
| Surface temperature | 6,300 K |
| Luminosity | 3.09 L☉ |
| Radius | 1.48 R☉ |
| Mass | 1.18 M☉ |
| Age | 2.4 billion years |
| Metallicity [Fe/H] | -0.17 |
| Right ascension (J2000) | 13h 55m 42.7s |
| Declination (J2000) | −32° 09′ 35″ |
| Space velocity (relative to the Sun) | 32.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.02. Visible from the whole Southern Hemisphere and north to latitude 58° N. South of latitude 58° S it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1091. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 17 million years.
The Sun seen from there
From a planet around Nyamien, the Sun would look like a star of magnitude 12.12, in the direction where our sky has the constellation Triangulum. It would be invisible to the naked eye.
Planets
- WASP-15 b 3.75-day orbit · 15.8 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.