Star · K3
GJ 3154
GJ 3154 is a main-sequence star of spectral type K3 in the constellation Fornax, 81.7 light-years from the Sun.
| Other names | HIP 10925 |
|---|---|
| Constellation | Fornax |
| Distance | 81.7 light-years (25.1 pc) |
| Apparent magnitude | magnitude 8.67 |
| Absolute magnitude | magnitude 6.67 |
| Spectral type | K3 |
| Surface temperature | 4,670 K |
| Luminosity | 0.299 L☉ |
| Radius | 0.836 R☉ |
| Mass | 0.74 M☉ (estimated) |
| Right ascension (J2000) | 2h 20m 42.9s |
| Declination (J2000) | −39° 02′ 01″ |
| Space velocity (relative to the Sun) | 32.3 km/s |
In the sky
Too faint for the naked eye (magnitude 8.67); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 51° N. South of latitude 51° S 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 1944. 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 3154, the Sun would look like a star of magnitude 6.83, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3176 6.41 light-years
- HD 16417 8.03 light-years
- HIP 8514 8.67 light-years
- HIP 10712 8.97 light-years
- HIP 10191 10.2 light-years
- WISE J024512.62-345047.8 10.6 light-years
- 2MASSI J0218291-313322 11.7 light-years
- GJ 3110 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.