Star · K9V
Gaia-5
Gaia-5 is a main-sequence star of spectral type K9V in the constellation Cygnus, 134.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cygnus |
|---|---|
| Distance | 134.7 light-years (41.3 pc) |
| Apparent magnitude | magnitude 14.24 |
| Absolute magnitude | magnitude 11.16 |
| Spectral type | K9V |
| Surface temperature | 3,450 K |
| Luminosity | 0.0149 L☉ |
| Radius | 0.345 R☉ |
| Mass | 0.339 M☉ |
| Age | 8.2 billion years |
| Metallicity [Fe/H] | -0.18 |
| Right ascension (J2000) | 20h 08m 09.8s |
| Declination (J2000) | +41° 56′ 30″ |
| Space velocity (relative to the Sun) | 25.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.24. Visible from the whole Northern Hemisphere and south to latitude 48° S. North of latitude 48° 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 1891. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around Gaia-5, the Sun would look like a star of magnitude 7.91, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Planets
- Gaia-5 b 359-day orbit · 12.1 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.