Star · G0
Gl 138.1A
Gl 138.1A is a main-sequence star of spectral type G0 in the constellation Cetus, 172.2 light-years from the Sun.
| Other names | HIP 15572 |
|---|---|
| Constellation | Cetus |
| Distance | 172.2 light-years (52.8 pc) |
| Apparent magnitude | magnitude 8.46 |
| Absolute magnitude | magnitude 4.85 |
| Spectral type | G0 |
| Surface temperature | 5,640 K |
| Luminosity | 1.1 L☉ |
| Radius | 1.1 R☉ |
| Mass | 1.02 M☉ (estimated) |
| Right ascension (J2000) | 3h 20m 37.0s |
| Declination (J2000) | +9° 02′ 01″ |
| Space velocity (relative to the Sun) | 73.7 km/s |
In the sky
Too faint for the naked eye (magnitude 8.46); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 81° S. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1854. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around Gl 138.1A, the Sun would look like a star of magnitude 8.44, in the direction where our sky has the constellation Libra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 15074 4.83 light-years
- HIP 16560 11.8 light-years
- PSO J054.3866+11.5361 15.3 light-years
- HIP 16786 16.3 light-years
- HIP 16548 17.1 light-years
- HIP 14075 18.6 light-years
- HIP 15310 19.0 light-years
- HIP 15304 19.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.