Star · M0III
74 Her
74 Her is a giant star of spectral type M0III in the constellation Hercules, 566.3 light-years from the Sun.
| Other names | HIP 84835 |
|---|---|
| Constellation | Hercules |
| Distance | 566.3 light-years (173.6 pc) |
| Apparent magnitude | magnitude 5.51 |
| Absolute magnitude | magnitude −0.69 |
| Spectral type | M0III |
| Surface temperature | 3,670 K |
| Luminosity | 707 L☉ |
| Radius | 65.8 R☉ |
| Mass | 5.92 M☉ (estimated) |
| Right ascension (J2000) | 17h 20m 21.1s |
| Declination (J2000) | +46° 14′ 27″ |
| Space velocity (relative to the Sun) | 72.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.51). Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1460. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 10 million years.
The Sun seen from there
From a planet around 74 Her, the Sun would look like a star of magnitude 11.03, in the direction where our sky has the constellation Pictor. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.