Star · ?
Gl 138.1B
Gl 138.1B is a main-sequence star of spectral type ? in the constellation Cetus, 191.9 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 191.9 light-years (58.8 pc) |
| Apparent magnitude | magnitude 15.13 |
| Absolute magnitude | magnitude 11.28 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0119 L☉ |
| Radius | 0.273 R☉ |
| Mass | 0.276 M☉ (estimated) |
| Right ascension (J2000) | 3h 20m 41.5s |
| Declination (J2000) | +9° 02′ 12″ |
| Space velocity (relative to the Sun) | 82.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.13. 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 1834. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.4 million years.
The Sun seen from there
From a planet around Gl 138.1B, the Sun would look like a star of magnitude 8.68, 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):
- ξ Tau 6.32 light-years
- HIP 15374 6.96 light-years
- HIP 15453 8.44 light-years
- SDSS J031740.38+061303.8 12.2 light-years
- HIP 14803 13.8 light-years
- HIP 16663 15.8 light-years
- HIP 16760 16.5 light-years
- HIP 14676 18.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.