Star · M0
Gl 728
Gl 728 is a main-sequence star of spectral type M0 in the constellation Hercules, 54.6 light-years from the Sun.
| Other names | HIP 92311 |
|---|---|
| Constellation | Hercules |
| Distance | 54.6 light-years (16.7 pc) |
| Apparent magnitude | magnitude 9.17 |
| Absolute magnitude | magnitude 8.05 |
| Spectral type | M0 |
| Surface temperature | 4,150 K |
| Luminosity | 0.126 L☉ |
| Radius | 0.686 R☉ |
| Mass | 0.596 M☉ (estimated) |
| Right ascension (J2000) | 18h 48m 51.9s |
| Declination (J2000) | +17° 26′ 20″ |
| Space velocity (relative to the Sun) | 51.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.17. Visible from the whole Northern Hemisphere and south to latitude 73° S. North of latitude 73° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1971. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 968 thousand years.
The Sun seen from there
From a planet around Gl 728, the Sun would look like a star of magnitude 5.95, in the direction where our sky has the constellation Canis Major. 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.