Star · M4.5 Ve
GJ 1289
GJ 1289 is a main-sequence star of spectral type M4.5 Ve in the constellation Andromeda, 27.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Andromeda |
|---|---|
| Distance | 27.3 light-years (8.36 pc) |
| Apparent magnitude | magnitude 12.57 |
| Absolute magnitude | magnitude 12.96 |
| Spectral type | M4.5 Ve |
| Surface temperature | 3,300 K |
| Luminosity | 0.0055 L☉ |
| Radius | 0.245 R☉ |
| Mass | 0.21 M☉ |
| Metallicity [Fe/H] | 0.02 |
| Right ascension (J2000) | 23h 43m 02.5s |
| Declination (J2000) | +36° 32′ 19″ |
| Space velocity (relative to the Sun) | 37.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.57. Visible from the whole Northern Hemisphere and south to latitude 53° S. North of latitude 53° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1999. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 484 thousand years.
The Sun seen from there
From a planet around GJ 1289, the Sun would look like a star of magnitude 4.44, in the direction where our sky has the constellation Centaurus. It would be visible to the naked eye.
Planets
- GJ 1289 b 112-day orbit · 2.38 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISE J000517.48+373720.5 2.63 light-years
- CWISEP J225628.97+400227.3 6.88 light-years
- GJ 896 A 9.71 light-years
- Gl 896B 9.73 light-years
- WISE J004945.61+215120.0 9.88 light-years
- 2MASSW J0036159+182110 10.5 light-years
- 2MASS J21481628+4003593 10.6 light-years
- WISE J223617.59+510551.9 10.6 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.