Star · M(6.1 +/- 0.7) V
LP 791-18
LP 791-18 is a main-sequence star of spectral type M(6.1 +/- 0.7) V in the constellation Crater, 86.9 light-years from the Sun. It is orbited by 3 confirmed exoplanet(s).
| Constellation | Crater |
|---|---|
| Distance | 86.9 light-years (26.7 pc) |
| Apparent magnitude | magnitude 17.07 |
| Absolute magnitude | magnitude 14.94 |
| Spectral type | M(6.1 +/- 0.7) V |
| Surface temperature | 2,960 K |
| Luminosity | 0.0023 L☉ |
| Radius | 0.182 R☉ |
| Mass | 0.139 M☉ |
| Age | 0.5 billion years |
| Metallicity [Fe/H] | -0.09 |
| Right ascension (J2000) | 11h 02m 45.7s |
| Declination (J2000) | −16° 24′ 23″ |
| Space velocity (relative to the Sun) | 28.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 17.07. Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S 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 1939. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around LP 791-18, the Sun would look like a star of magnitude 6.96, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Planets
- LP 791-18 b 0.948-day orbit · 1.21 R⊕
- LP 791-18 d 2.75-day orbit · 1.03 R⊕
- LP 791-18 c 4.99-day orbit · 2.49 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.