Star · M5.5 V
GJ 3512
GJ 3512 is a main-sequence star of spectral type M5.5 V in the constellation Ursa Major, 31.0 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Ursa Major |
|---|---|
| Distance | 31.0 light-years (9.50 pc) |
| Apparent magnitude | magnitude 15.05 |
| Absolute magnitude | magnitude 15.16 |
| Spectral type | M5.5 V |
| Surface temperature | 3,140 K |
| Luminosity | 0.00157 L☉ |
| Radius | 0.139 R☉ |
| Mass | 0.123 M☉ |
| Age | 5.5 billion years |
| Metallicity [Fe/H] | -0.07 |
| Right ascension (J2000) | 8h 41m 22.3s |
| Declination (J2000) | +59° 29′ 56″ |
| Space velocity (relative to the Sun) | 58.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.05. Visible from the whole Northern Hemisphere and south to latitude 31° S. North of latitude 31° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1995. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 549 thousand years.
The Sun seen from there
From a planet around GJ 3512, the Sun would look like a star of magnitude 4.72, in the direction where our sky has the constellation Indus. It would be visible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 339.1 5.02 light-years
- 2MASSI J0908380+503208 6.30 light-years
- HIP 48714 6.38 light-years
- GJ 1119 7.59 light-years
- WISEPA J085716.25+560407.6 7.64 light-years
- GJ 3421 8.07 light-years
- GJ 3417 8.44 light-years
- GJ 3412A 8.98 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.