Star · ?
GJ 3531
GJ 3531 is a main-sequence star of spectral type ? in the constellation Cancer, 95.4 light-years from the Sun.
| Constellation | Cancer |
|---|---|
| Distance | 95.4 light-years (29.3 pc) |
| Apparent magnitude | magnitude 13.31 |
| Absolute magnitude | magnitude 10.98 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0157 L☉ |
| Radius | 0.313 R☉ |
| Mass | 0.311 M☉ (estimated) |
| Right ascension (J2000) | 9h 06m 14.6s |
| Declination (J2000) | +12° 51′ 34″ |
| Space velocity (relative to the Sun) | 56.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.31. Visible from the whole Northern Hemisphere and south to latitude 77° S. North of latitude 77° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1931. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around GJ 3531, the Sun would look like a star of magnitude 7.16, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ULAS J090521.61+100654.9 7.37 light-years
- SDSS J084333.28+102443.5 11.9 light-years
- Gl 343 12.7 light-years
- HIP 43233 13.0 light-years
- HIP 44341 13.8 light-years
- G 9-40 14.4 light-years
- GJ 3510A 15.4 light-years
- GJ 3538 15.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.