Star · G7V
Kepler-439
Kepler-439 is a main-sequence star of spectral type G7V in the constellation Lyra, 2,469 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Lyra |
|---|---|
| Distance | 2,469 light-years (757.0 pc) |
| Apparent magnitude | magnitude 14.65 |
| Absolute magnitude | magnitude 5.25 |
| Spectral type | G7V |
| Surface temperature | 5,430 K |
| Luminosity | 0.581 L☉ |
| Radius | 0.866 R☉ |
| Mass | 0.884 M☉ |
| Age | 7.2 billion years |
| Metallicity [Fe/H] | 0.02 |
| Right ascension (J2000) | 18h 43m 12.4s |
| Declination (J2000) | +44° 02′ 02″ |
| Space velocity (relative to the Sun) | 23.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.65. Visible from the whole Northern Hemisphere and south to latitude 46° S. North of latitude 46° 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 444 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 44 million years.
The Sun seen from there
From a planet around Kepler-439, the Sun would look like a star of magnitude 14.23, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Planets
- Kepler-439 b 178-day orbit · 2.24 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.