Star · G3V
NGTS-31
NGTS-31 is a main-sequence star of spectral type G3V in the constellation Columba, 1,622 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Columba |
|---|---|
| Distance | 1,622 light-years (497.4 pc) |
| Apparent magnitude | magnitude 13.52 |
| Absolute magnitude | magnitude 5.04 |
| Spectral type | G3V |
| Surface temperature | 5,710 K |
| Luminosity | 2.77 L☉ |
| Radius | 1.7 R☉ |
| Mass | 0.96 M☉ |
| Age | 10.0 billion years |
| Metallicity [Fe/H] | 0.00 |
| Right ascension (J2000) | 5h 21m 41.1s |
| Declination (J2000) | −38° 39′ 25″ |
| Space velocity (relative to the Sun) | 15.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.52. Visible from the whole Southern Hemisphere and north to latitude 51° N. South of latitude 51° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 404. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 29 million years.
The Sun seen from there
From a planet around NGTS-31, the Sun would look like a star of magnitude 13.31, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Planets
- NGTS-31 b 4.16-day orbit · 18 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.