Star · K0
GJ 3633
GJ 3633 is a main-sequence star of spectral type K0 in the constellation Leo, 56.4 light-years from the Sun.
| Other names | HIP 53486 |
|---|---|
| Constellation | Leo |
| Distance | 56.4 light-years (17.3 pc) |
| Apparent magnitude | magnitude 7.37 |
| Absolute magnitude | magnitude 6.18 |
| Spectral type | K0 |
| Surface temperature | 4,940 K |
| Luminosity | 0.407 L☉ |
| Radius | 0.87 R☉ |
| Mass | 0.799 M☉ (estimated) |
| Right ascension (J2000) | 10h 56m 30.8s |
| Declination (J2000) | +7° 23′ 19″ |
| Space velocity (relative to the Sun) | 22.7 km/s |
In the sky
Too faint for the naked eye (magnitude 7.37); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 83° S. 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 1970. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.0 million years.
The Sun seen from there
From a planet around GJ 3633, the Sun would look like a star of magnitude 6.02, in the direction where our sky has the constellation Aquarius. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3643 4.08 light-years
- SDSS J104335.08+121314.1 5.93 light-years
- Gl 418 6.17 light-years
- Gl 398 8.38 light-years
- GJ 3637 8.95 light-years
- HD 99492 9.22 light-years
- 83 Leo 9.24 light-years
- 2MASSI J1045240-014957 9.44 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.