Star · M0V
Kepler-1439
Kepler-1439 is a main-sequence star of spectral type M0V in the constellation Lyra, 735.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Lyra |
|---|---|
| Distance | 735.1 light-years (225.4 pc) |
| Apparent magnitude | magnitude 17.05 |
| Absolute magnitude | magnitude 10.29 |
| Spectral type | M0V |
| Surface temperature | 3,580 K |
| Luminosity | 0.0286 L☉ |
| Radius | 0.43 R☉ |
| Mass | 0.46 M☉ |
| Age | 4.1 billion years |
| Metallicity [Fe/H] | -0.03 |
| Right ascension (J2000) | 19h 02m 57.5s |
| Declination (J2000) | +40° 58′ 48″ |
| Space velocity (relative to the Sun) | 45.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 17.05. Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° 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 1291. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 13 million years.
The Sun seen from there
From a planet around Kepler-1439, the Sun would look like a star of magnitude 11.59, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Planets
- Kepler-1439 b 8.07-day orbit · 1.46 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.