Star · F8V
39 Gem
39 Gem is a main-sequence star of spectral type F8V in the constellation Gemini, 148.8 light-years from the Sun.
| Other names | HIP 33595 |
|---|---|
| Constellation | Gemini |
| Distance | 148.8 light-years (45.6 pc) |
| Apparent magnitude | magnitude 6.20 |
| Absolute magnitude | magnitude 2.90 |
| Spectral type | F8V |
| Surface temperature | 6,300 K |
| Luminosity | 5.98 L☉ |
| Radius | 2.05 R☉ |
| Mass | 1.56 M☉ (estimated) |
| Right ascension (J2000) | 6h 58m 47.4s |
| Declination (J2000) | +26° 04′ 52″ |
| Space velocity (relative to the Sun) | 40.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.20). Visible from the whole Northern Hemisphere and south to latitude 64° S. North of latitude 64° 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 1877. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around 39 Gem, the Sun would look like a star of magnitude 8.13, 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 33497 9.03 light-years
- TOI-5082 12.8 light-years
- HIP 34608 15.3 light-years
- HIP 33287 16.0 light-years
- 2MASS J07244848+2506143 17.6 light-years
- HIP 30880 17.7 light-years
- HIP 34700 18.4 light-years
- HIP 34714 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.