Star · ?
GJ 3239A
GJ 3239A is a main-sequence star of spectral type ? in the constellation Taurus, 126.3 light-years from the Sun.
| Constellation | Taurus |
|---|---|
| Distance | 126.3 light-years (38.7 pc) |
| Apparent magnitude | magnitude 12.74 |
| Absolute magnitude | magnitude 9.80 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0464 L☉ |
| Radius | 0.539 R☉ |
| Mass | 0.464 M☉ (estimated) |
| Right ascension (J2000) | 3h 37m 32.4s |
| Declination (J2000) | +17° 51′ 35″ |
| Space velocity (relative to the Sun) | 31.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.74. Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° N it never sets. 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 1900. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around GJ 3239A, the Sun would look like a star of magnitude 7.77, 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):
- GJ 3230A 7.46 light-years
- HIP 17076 7.61 light-years
- PSO J057.2893+15.2433 8.50 light-years
- GJ 3232 9.33 light-years
- HIP 16641 10.6 light-years
- PSO J049.1124+17.0885 11.3 light-years
- HIP 18327 11.7 light-years
- HIP 15724 11.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.