Star · ?
GJ 3315
GJ 3315 is a main-sequence star of spectral type ? in the constellation Perseus, 82.8 light-years from the Sun.
| Constellation | Perseus |
|---|---|
| Distance | 82.8 light-years (25.4 pc) |
| Apparent magnitude | magnitude 11.79 |
| Absolute magnitude | magnitude 9.77 |
| Spectral type | ? |
| Surface temperature | 3,840 K |
| Luminosity | 0.0368 L☉ |
| Radius | 0.433 R☉ |
| Mass | 0.438 M☉ (estimated) |
| Right ascension (J2000) | 4h 50m 14.7s |
| Declination (J2000) | +45° 58′ 58″ |
| Space velocity (relative to the Sun) | 36.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.79. Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1943. 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 3315, the Sun would look like a star of magnitude 6.85, in the direction where our sky has the constellation Ara. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.