Star · F9V
Kepler-1819
Kepler-1819 is a main-sequence star of spectral type F9V in the constellation Cygnus, 4,446 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cygnus |
|---|---|
| Distance | 4,446 light-years (1,363 pc) |
| Apparent magnitude | magnitude 15.49 |
| Absolute magnitude | magnitude 4.82 |
| Spectral type | F9V |
| Surface temperature | 6,090 K |
| Luminosity | 1.22 L☉ |
| Radius | 1.07 R☉ |
| Mass | 1.17 M☉ |
| Age | 0.4 billion years |
| Metallicity [Fe/H] | 0.21 |
| Right ascension (J2000) | 19h 46m 14.4s |
| Declination (J2000) | +46° 51′ 27″ |
| Space velocity (relative to the Sun) | 48.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.49. Visible from the whole Northern Hemisphere and south to latitude 43° S. North of latitude 43° 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 4,446 years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 79 million years.
The Sun seen from there
From a planet around Kepler-1819, the Sun would look like a star of magnitude 15.50, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Planets
- Kepler-1819 b 16.5-day orbit · 3.9 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.