Star · G2V
Kosjenka
Kosjenka is a main-sequence star of spectral type G2V in the constellation Columba, 942.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | WASP-63 |
|---|---|
| Constellation | Columba |
| Distance | 942.4 light-years (288.9 pc) |
| Apparent magnitude | magnitude 11.22 |
| Absolute magnitude | magnitude 3.92 |
| Spectral type | G2V |
| Surface temperature | 5,550 K |
| Luminosity | 2.81 L☉ |
| Radius | 1.86 R☉ |
| Mass | 1.28 M☉ |
| Age | 8.3 billion years |
| Metallicity [Fe/H] | 0.08 |
| Right ascension (J2000) | 6h 17m 20.7s |
| Declination (J2000) | −38° 19′ 24″ |
| Space velocity (relative to the Sun) | 50.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.22. Visible from the whole Southern Hemisphere and north to latitude 52° N. South of latitude 52° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1084. 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 Kosjenka, the Sun would look like a star of magnitude 12.13, in the direction where our sky has the constellation Lyra. It would be invisible to the naked eye.
Planets
- WASP-63 b 4.38-day orbit · 15.8 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.