Star · K9V
GJ 3453
GJ 3453 is a main-sequence star of spectral type K9V in the constellation Gemini, 84.3 light-years from the Sun.
| Other names | HIP 36853 |
|---|---|
| Constellation | Gemini |
| Distance | 84.3 light-years (25.8 pc) |
| Apparent magnitude | magnitude 11.53 |
| Absolute magnitude | magnitude 9.47 |
| Spectral type | K9V |
| Surface temperature | 3,800 K |
| Luminosity | 0.0511 L☉ |
| Radius | 0.523 R☉ |
| Mass | 0.476 M☉ (estimated) |
| Right ascension (J2000) | 7h 34m 39.1s |
| Declination (J2000) | +22° 20′ 16″ |
| Space velocity (relative to the Sun) | 29.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.53. 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 1942. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around GJ 3453, the Sun would look like a star of magnitude 6.89, 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 3451 4.61 light-years
- GJ 3448B 8.09 light-years
- GJ 3447A 8.47 light-years
- HIP 34567 9.80 light-years
- ULAS J075829.83+222526.7 9.85 light-years
- HIP 34950 9.96 light-years
- ULAS J074502.79+233240.3 9.99 light-years
- GJ 3471 10.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.