Star · ?
GJ 3179B
GJ 3179B is a main-sequence star of spectral type ? in the constellation Perseus, 69.4 light-years from the Sun.
| Constellation | Perseus |
|---|---|
| Distance | 69.4 light-years (21.3 pc) |
| Apparent magnitude | magnitude 15.00 |
| Absolute magnitude | magnitude 13.36 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00175 L☉ |
| Radius | 0.105 R☉ |
| Mass | 0.12 M☉ (estimated) |
| Right ascension (J2000) | 2h 45m 40.1s |
| Declination (J2000) | +44° 57′ 11″ |
| Space velocity (relative to the Sun) | 43.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.00. Visible from the whole Northern Hemisphere and south to latitude 45° S. North of latitude 45° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1957. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around GJ 3179B, the Sun would look like a star of magnitude 6.47, in the direction where our sky has the constellation Lupus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3164 5.43 light-years
- Gl 91.3 7.02 light-years
- GJ 3178A 8.80 light-years
- 2MASSI J0213288+444445 9.11 light-years
- GJ 3144 9.33 light-years
- Gl 84.2A 9.94 light-years
- Gl 84.2B 9.94 light-years
- WISEA J032600.28+421056.8 9.95 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.