Star · M1
Gl 251.1
Gl 251.1 is a main-sequence star of spectral type M1 in the constellation Gemini, 132.1 light-years from the Sun.
| Other names | HIP 33241 |
|---|---|
| Constellation | Gemini |
| Distance | 132.1 light-years (40.5 pc) |
| Apparent magnitude | magnitude 10.58 |
| Absolute magnitude | magnitude 7.54 |
| Spectral type | M1 |
| Surface temperature | 4,200 K |
| Luminosity | 0.193 L☉ |
| Radius | 0.831 R☉ |
| Mass | 0.663 M☉ (estimated) |
| Right ascension (J2000) | 6h 54m 57.0s |
| Declination (J2000) | +12° 09′ 29″ |
| Space velocity (relative to the Sun) | 75.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.58. Visible from the whole Northern Hemisphere and south to latitude 78° S. North of latitude 78° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1894. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around Gl 251.1, the Sun would look like a star of magnitude 7.87, in the direction where our sky has the constellation Scutum. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 31655 12.1 light-years
- HIP 34511 13.7 light-years
- HIP 35310 15.1 light-years
- HIP 34034 15.8 light-years
- HIP 34095 18.6 light-years
- HIP 32933 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.