Star · K7V
Gaia-4
Gaia-4 is a main-sequence star of spectral type K7V in the constellation Canes Venatici, 240.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Canes Venatici |
|---|---|
| Distance | 240.8 light-years (73.8 pc) |
| Apparent magnitude | magnitude 12.46 |
| Absolute magnitude | magnitude 8.12 |
| Spectral type | K7V |
| Surface temperature | 4,030 K |
| Luminosity | 0.1 L☉ |
| Radius | 0.624 R☉ |
| Mass | 0.644 M☉ |
| Age | 6.8 billion years |
| Metallicity [Fe/H] | 0.05 |
| Right ascension (J2000) | 13h 58m 01.5s |
| Declination (J2000) | +31° 41′ 44″ |
| Space velocity (relative to the Sun) | 32.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.46. Visible from the whole Northern Hemisphere and south to latitude 58° S. North of latitude 58° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1785. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.3 million years.
The Sun seen from there
From a planet around Gaia-4, the Sun would look like a star of magnitude 9.17, in the direction where our sky has the constellation Fornax. It would be invisible to the naked eye.
Planets
- Gaia-4 b 571-day orbit · 12.4 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J135955.19+324719.0 4.89 light-years
- HIP 67871 6.37 light-years
- HIP 69102 12.8 light-years
- HIP 67782 13.6 light-years
- HIP 68091 15.9 light-years
- HIP 66621 17.6 light-years
- HIP 68313 18.5 light-years
- HIP 68394 19.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.