Star · K3V
GJ 3493
GJ 3493 is a main-sequence star of spectral type K3V in the constellation Puppis, 113.1 light-years from the Sun.
| Other names | HIP 40724 |
|---|---|
| Constellation | Puppis |
| Distance | 113.1 light-years (34.7 pc) |
| Apparent magnitude | magnitude 9.82 |
| Absolute magnitude | magnitude 7.12 |
| Spectral type | K3V |
| Surface temperature | 4,450 K |
| Luminosity | 0.231 L☉ |
| Radius | 0.809 R☉ |
| Mass | 0.693 M☉ (estimated) |
| Right ascension (J2000) | 8h 18m 44.4s |
| Declination (J2000) | −15° 12′ 09″ |
| Space velocity (relative to the Sun) | 89.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.82. Visible from the whole Southern Hemisphere and north to latitude 75° N. South of latitude 75° S 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 1913. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around GJ 3493, the Sun would look like a star of magnitude 7.53, in the direction where our sky has the constellation Delphinus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- COCONUTS-3B 5.99 light-years
- HIP 41609 6.78 light-years
- HIP 42108 7.92 light-years
- HIP 38998 10.7 light-years
- HIP 42281 11.2 light-years
- HIP 41662 11.8 light-years
- HIP 41282 11.9 light-years
- HIP 38702 12.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.