Star · G2V
GJ 3450B
GJ 3450B is a main-sequence star of spectral type G2V in the constellation Monoceros, 70.9 light-years from the Sun.
| Constellation | Monoceros |
|---|---|
| Distance | 70.9 light-years (21.7 pc) |
| Apparent magnitude | magnitude 8.60 |
| Absolute magnitude | magnitude 6.91 |
| Spectral type | G2V |
| Surface temperature | 5,780 K |
| Luminosity | 0.159 L☉ |
| Radius | 0.398 R☉ |
| Mass | 0.632 M☉ (estimated) |
| Right ascension (J2000) | 7h 32m 05.8s |
| Declination (J2000) | −8° 52′ 48″ |
| Space velocity (relative to the Sun) | 18.6 km/s |
In the sky
Too faint for the naked eye (magnitude 8.60); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 81° N. 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 1955. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 3450B, the Sun would look like a star of magnitude 6.52, 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):
- HIP 36827 6.20 light-years
- 2MASS J07414279-0506464 7.28 light-years
- Gl 261 10.1 light-years
- DENIS-P J0716478-063037 10.7 light-years
- GJ 3433 11.0 light-years
- Gl 256 11.6 light-years
- PSO J117.0600-01.6779 11.7 light-years
- GJ 1094 12.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.