Star · F7I
HIP 104185
HIP 104185 is a supergiant star of spectral type F7I in the constellation Cygnus, 1,966 light-years from the Sun.
| Constellation | Cygnus |
|---|---|
| Distance | 1,966 light-years (602.6 pc) |
| Apparent magnitude | magnitude 5.77 |
| Absolute magnitude | magnitude −3.13 |
| Spectral type | F7I |
| Surface temperature | 6,150 K |
| Luminosity | 1,570 L☉ |
| Radius | 34.9 R☉ |
| Mass | 7.44 M☉ (estimated) |
| Right ascension (J2000) | 21h 06m 30.2s |
| Declination (J2000) | +31° 11′ 05″ |
| Space velocity (relative to the Sun) | 17.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.77). Visible from the whole Northern Hemisphere and south to latitude 59° S. North of latitude 59° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 60. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 35 million years.
The Sun seen from there
From a planet around HIP 104185, the Sun would look like a star of magnitude 13.73, in the direction where our sky has the constellation Pyxis. 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.