Star · K7
GJ 900 A
GJ 900 A is a main-sequence star of spectral type K7 in the constellation Pisces, 68.0 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | Gl 900 · HIP 116384 |
|---|---|
| Constellation | Pisces |
| Distance | 68.0 light-years (20.8 pc) |
| Apparent magnitude | magnitude 9.59 |
| Absolute magnitude | magnitude 7.99 |
| Spectral type | K7 |
| Surface temperature | 3,980 K |
| Luminosity | 0.12 L☉ |
| Radius | 0.716 R☉ |
| Mass | 1.08 M☉ |
| Age | 0.2 billion years |
| Metallicity [Fe/H] | -0.63 |
| Right ascension (J2000) | 23h 35m 00.3s |
| Declination (J2000) | +1° 36′ 19″ |
| Space velocity (relative to the Sun) | 35.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.59. Visible from the whole Northern Hemisphere and south to latitude 88° S. 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 1958. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around GJ 900 A, the Sun would look like a star of magnitude 6.43, in the direction where our sky has the constellation Leo. It would be visible to the naked eye.
Planets
- GJ 900 b 12.4 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ULAS J232600.40+020139.2 3.92 light-years
- GJ 4329 7.71 light-years
- GJ 4319 8.29 light-years
- GJ 4370 10.7 light-years
- GJ 2155 10.9 light-years
- WISEPC J234026.62-074507.2 11.2 light-years
- Gl 895.2 11.7 light-years
- HD 217107 11.9 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.