Star · ?
GJ 3046
GJ 3046 is a main-sequence star of spectral type ? in the constellation Cassiopeia, 120.2 light-years from the Sun.
| Constellation | Cassiopeia |
|---|---|
| Distance | 120.2 light-years (36.9 pc) |
| Apparent magnitude | magnitude 12.83 |
| Absolute magnitude | magnitude 10.00 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0387 L☉ |
| Radius | 0.493 R☉ |
| Mass | 0.444 M☉ (estimated) |
| Right ascension (J2000) | 0h 39m 31.8s |
| Declination (J2000) | +60° 33′ 11″ |
| Space velocity (relative to the Sun) | 58.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.83. Visible from the whole Northern Hemisphere and south to latitude 29° S. North of latitude 29° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1906. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around GJ 3046, the Sun would look like a star of magnitude 7.66, in the direction where our sky has the constellation Crux. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 58 11.5 light-years
- HIP 723 14.3 light-years
- HIP 2364 17.1 light-years
- PSO J354.3709+57.7939 18.2 light-years
- HIP 6285 18.9 light-years
- GJ 9059 19.8 light-years
- HIP 8865 19.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.