Star · F5V
HIP 99889
HIP 99889 is a main-sequence star of spectral type F5V in the constellation Cygnus, 111.4 light-years from the Sun.
| Constellation | Cygnus |
|---|---|
| Distance | 111.4 light-years (34.1 pc) |
| Apparent magnitude | magnitude 5.87 |
| Absolute magnitude | magnitude 3.20 |
| Spectral type | F5V |
| Surface temperature | 6,640 K |
| Luminosity | 4.46 L☉ |
| Radius | 1.6 R☉ |
| Mass | 1.45 M☉ (estimated) |
| Right ascension (J2000) | 20h 16m 00.6s |
| Declination (J2000) | +45° 34′ 46″ |
| Space velocity (relative to the Sun) | 44.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.87). 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 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 1915. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around HIP 99889, the Sun would look like a star of magnitude 7.50, in the direction where our sky has the constellation Vela. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 100241 10.5 light-years
- HD 197037 10.9 light-years
- HIP 96735 15.7 light-years
- HAT-P-11 15.8 light-years
- UGPS J20480024+503821.9 17.0 light-years
- HIP 98381 17.3 light-years
- HIP 99026 18.2 light-years
- 43 Cyg 18.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.