Star · ?
GJ 3451
GJ 3451 is a main-sequence star of spectral type ? in the constellation Gemini, 88.9 light-years from the Sun.
| Constellation | Gemini |
|---|---|
| Distance | 88.9 light-years (27.3 pc) |
| Apparent magnitude | magnitude 16.46 |
| Absolute magnitude | magnitude 14.28 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 7.48 × 10⁻⁴ L☉ |
| Radius | 0.0684 R☉ |
| Mass | 0.0828 M☉ (estimated) |
| Right ascension (J2000) | 7h 33m 52.3s |
| Declination (J2000) | +22° 23′ 39″ |
| Space velocity (relative to the Sun) | 143.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.46. Visible from the whole Northern Hemisphere and south to latitude 68° S. North of latitude 68° 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 1937. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 3451, the Sun would look like a star of magnitude 7.01, 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):
- GJ 3453 4.61 light-years
- GJ 3447A 7.91 light-years
- HIP 34950 8.27 light-years
- HIP 36249 8.53 light-years
- GJ 3448B 11.1 light-years
- HIP 36152 11.3 light-years
- HIP 34567 11.4 light-years
- SDSS J074838.61+174332.9 13.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.