Star · ?
GJ 1231
GJ 1231 is a main-sequence star of spectral type ? in the constellation Lyra, 62.2 light-years from the Sun.
| Constellation | Lyra |
|---|---|
| Distance | 62.2 light-years (19.1 pc) |
| Apparent magnitude | magnitude 15.16 |
| Absolute magnitude | magnitude 13.76 |
| Spectral type | ? |
| Surface temperature | 3,270 K |
| Luminosity | 0.00242 L☉ |
| Radius | 0.154 R☉ |
| Mass | 0.138 M☉ (estimated) |
| Right ascension (J2000) | 19h 08m 16.0s |
| Declination (J2000) | +26° 34′ 57″ |
| Space velocity (relative to the Sun) | 48.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.16. Visible from the whole Northern Hemisphere and south to latitude 63° S. North of latitude 63° 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 1964. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.1 million years.
The Sun seen from there
From a planet around GJ 1231, the Sun would look like a star of magnitude 6.23, in the direction where our sky has the constellation Canis Major. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.