Star · ?
GJ 4045
GJ 4045 is a main-sequence star of spectral type ? in the constellation Octans, 69.8 light-years from the Sun.
| Constellation | Octans |
|---|---|
| Distance | 69.8 light-years (21.4 pc) |
| Apparent magnitude | magnitude 14.10 |
| Absolute magnitude | magnitude 12.45 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00405 L☉ |
| Radius | 0.159 R☉ |
| Mass | 0.173 M☉ (estimated) |
| Right ascension (J2000) | 18h 19m 28.1s |
| Declination (J2000) | −77° 03′ 12″ |
| Space velocity (relative to the Sun) | 62.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.10. Visible from the whole Southern Hemisphere and north to latitude 13° N. South of latitude 13° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1956. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around GJ 4045, the Sun would look like a star of magnitude 6.48, in the direction where our sky has the constellation Camelopardalis. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.