Star · M1.5 V
Lalande 21185
Lalande 21185 is a main-sequence star of spectral type M1.5 V in the constellation Ursa Major, 8.30 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | GJ 411 · Gl 411 · HIP 54035 |
|---|---|
| Constellation | Ursa Major |
| Distance | 8.30 light-years (2.55 pc) |
| Apparent magnitude | magnitude 7.49 |
| Absolute magnitude | magnitude 10.46 |
| Spectral type | M1.5 V |
| Surface temperature | 3,720 K |
| Luminosity | 0.0195 L☉ |
| Radius | 0.369 R☉ |
| Mass | 0.39 M☉ |
| Age | 8.0 billion years |
| Metallicity [Fe/H] | -0.36 |
| Right ascension (J2000) | 11h 03m 20.2s |
| Declination (J2000) | +35° 58′ 11″ |
| Space velocity (relative to the Sun) | 103.1 km/s |
In the sky
Too faint for the naked eye (magnitude 7.49); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 54° S. North of latitude 54° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 2018. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 147 thousand years.
The Sun seen from there
From a planet around Lalande 21185, the Sun would look like a star of magnitude 1.86, in the direction where our sky has the constellation Piscis Austrinus. It would be visible to the naked eye.
Planets
- GJ 411 b 12.9-day orbit · 1.45 R⊕
- HD 95735 c 2,950-day orbit · 3.76 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.