Star · F5IV
63 Gem
63 Gem is a subgiant star of spectral type F5IV in the constellation Gemini, 105.9 light-years from the Sun.
| Other names | HIP 36238 |
|---|---|
| Constellation | Gemini |
| Distance | 105.9 light-years (32.5 pc) |
| Apparent magnitude | magnitude 5.20 |
| Absolute magnitude | magnitude 2.64 |
| Spectral type | F5IV |
| Surface temperature | 6,600 K |
| Luminosity | 7.47 L☉ |
| Radius | 2.09 R☉ |
| Mass | 1.65 M☉ (estimated) |
| Right ascension (J2000) | 7h 27m 44.4s |
| Declination (J2000) | +21° 26′ 43″ |
| Space velocity (relative to the Sun) | 32.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.20). Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1920. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around 63 Gem, the Sun would look like a star of magnitude 7.39, in the direction where our sky has the constellation Sagittarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 36152 6.08 light-years
- GJ 3462 9.10 light-years
- HIP 34317 10.1 light-years
- λ Gem 11.3 light-years
- HIP 36249 11.6 light-years
- GJ 9231B 11.8 light-years
- HIP 38492 12.5 light-years
- SDSS J074838.61+174332.9 13.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.