Star · G5V
Gl 310.1B
Gl 310.1B is a main-sequence star of spectral type G5V in the constellation Cancer, 83.7 light-years from the Sun.
| Other names | HIP 42173 |
|---|---|
| Constellation | Cancer |
| Distance | 83.7 light-years (25.7 pc) |
| Apparent magnitude | magnitude 7.25 |
| Absolute magnitude | magnitude 5.20 |
| Spectral type | G5V |
| Surface temperature | 5,570 K |
| Luminosity | 0.805 L☉ |
| Radius | 0.964 R☉ |
| Mass | 0.947 M☉ (estimated) |
| Right ascension (J2000) | 8h 35m 51.3s |
| Declination (J2000) | +6° 37′ 22″ |
| Space velocity (relative to the Sun) | 37.2 km/s |
In the sky
Too faint for the naked eye (magnitude 7.25); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 83° S. 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 1942. 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 Gl 310.1B, the Sun would look like a star of magnitude 6.88, in the direction where our sky has the constellation Aquila. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 310.1A 1.22 light-years
- HIP 42418 2.56 light-years
- GJ 3511B 4.21 light-years
- GJ 3510A 4.23 light-years
- HIP 43233 10.2 light-years
- HIP 43557 10.6 light-years
- SDSS J083048.80+012831.1 10.6 light-years
- GJ 3538 12.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.