Star · ?
GJ 3778
GJ 3778 is a main-sequence star of spectral type ? in the constellation Virgo, 75.0 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 75.0 light-years (23.0 pc) |
| Apparent magnitude | magnitude 11.90 |
| Absolute magnitude | magnitude 10.09 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0355 L☉ |
| Radius | 0.471 R☉ |
| Mass | 0.434 M☉ (estimated) |
| Right ascension (J2000) | 13h 21m 35.4s |
| Declination (J2000) | +3° 45′ 57″ |
| Space velocity (relative to the Sun) | 56.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.90. Visible from the whole Northern Hemisphere and south to latitude 86° S. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1951. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 3778, the Sun would look like a star of magnitude 6.64, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Heze 7.13 light-years
- HIP 65083 7.20 light-years
- SDSSp J132629.82-003831.5 8.90 light-years
- SDSS J133148.92-011651.4 8.97 light-years
- GJ 1172 9.33 light-years
- HD 114783 10.3 light-years
- Gl 522 10.3 light-years
- GJ 3802 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.