Star · M3.0
LTT 1445 A
LTT 1445 A is a giant star of spectral type M3.0 in the constellation Eridanus, 22.4 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 14101 |
|---|---|
| Constellation | Eridanus |
| Distance | 22.4 light-years (6.86 pc) |
| Apparent magnitude | magnitude 10.40 |
| Absolute magnitude | magnitude 11.22 |
| Spectral type | M3.0 |
| Surface temperature | 3,560 K |
| Luminosity | 0.009 L☉ |
| Radius | 0.271 R☉ |
| Mass | 0.257 M☉ |
| Metallicity [Fe/H] | -0.34 |
| Right ascension (J2000) | 3h 01m 51.3s |
| Declination (J2000) | −16° 35′ 35″ |
| Space velocity (relative to the Sun) | 15.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.40. Visible from the whole Southern Hemisphere and north to latitude 73° N. South of latitude 73° 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 2004. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 397 thousand years.
The Sun seen from there
From a planet around LTT 1445 A, the Sun would look like a star of magnitude 4.01, in the direction where our sky has the constellation Boötes. It would be visible to the naked eye.
Planets
- LTT 1445 A c 3.12-day orbit · 1.15 R⊕
- LTT 1445 A b 5.36-day orbit · 1.34 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3193B 2.51 light-years
- GJ 3192 2.51 light-years
- PSO J043.5395+02.3995 7.41 light-years
- 2MASSI J0415195-093506 7.78 light-years
- Gl 166C 8.99 light-years
- Keid 8.99 light-years
- Gl 166B 9.00 light-years
- Rana 9.08 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.