Star · M2.0 V
LHS 1678
LHS 1678 is a main-sequence star of spectral type M2.0 V in the constellation Caelum, 64.8 light-years from the Sun. It is orbited by 3 confirmed exoplanet(s).
| Constellation | Caelum |
|---|---|
| Distance | 64.8 light-years (19.9 pc) |
| Apparent magnitude | magnitude 12.48 |
| Absolute magnitude | magnitude 10.99 |
| Spectral type | M2.0 V |
| Surface temperature | 3,490 K |
| Luminosity | 0.0145 L☉ |
| Radius | 0.329 R☉ |
| Mass | 0.345 M☉ |
| Age | 7.0 billion years |
| Right ascension (J2000) | 4h 32m 43.0s |
| Declination (J2000) | −39° 47′ 28″ |
| Space velocity (relative to the Sun) | 95.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.48. Visible from the whole Southern Hemisphere and north to latitude 50° N. South of latitude 50° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1961. 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 LHS 1678, the Sun would look like a star of magnitude 6.32, in the direction where our sky has the constellation Hercules. It would be visible to the naked eye.
Planets
- LHS 1678 b 0.86-day orbit · 0.685 R⊕
- LHS 1678 c 3.69-day orbit · 0.941 R⊕
- LHS 1678 d 4.97-day orbit · 0.981 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 174.1B 3.37 light-years
- α Cae 3.37 light-years
- 2MASS J04250679-4255085 6.07 light-years
- GJ 1071 8.57 light-years
- 2MASS J05103520-4208140 9.20 light-years
- GJ 3317 9.41 light-years
- 2MASSI J0443058-320209 9.59 light-years
- WISE J041358.14-475039.3 9.84 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.