Star · ?
GJ 3718
GJ 3718 is a giant star of spectral type ? in the constellation Canes Venatici, 87.9 light-years from the Sun.
| Constellation | Canes Venatici |
|---|---|
| Distance | 87.9 light-years (26.9 pc) |
| Apparent magnitude | magnitude 11.89 |
| Absolute magnitude | magnitude 9.74 |
| Spectral type | ? |
| Surface temperature | 3,030 K |
| Luminosity | 0.171 L☉ |
| Radius | 1.5 R☉ |
| Mass | 1.2 M☉ (estimated) |
| Right ascension (J2000) | 12h 15m 28.4s |
| Declination (J2000) | +39° 11′ 15″ |
| Space velocity (relative to the Sun) | 43.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.89. Visible from the whole Northern Hemisphere and south to latitude 51° S. North of latitude 51° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1938. 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 3718, the Sun would look like a star of magnitude 6.98, in the direction where our sky has the constellation Sculptor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 60783 5.45 light-years
- GJ 3714 5.81 light-years
- GJ 3706 6.61 light-years
- HIP 60970 10.5 light-years
- GJ 3697 12.2 light-years
- GJ 3729 12.4 light-years
- HIP 60605 12.8 light-years
- 2MASSI J1204303+321259 13.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.