Star · K3I
HIP 98738
HIP 98738 is a supergiant star of spectral type K3I in the constellation Sagitta, 819.7 light-years from the Sun.
| Constellation | Sagitta |
|---|---|
| Distance | 819.7 light-years (251.3 pc) |
| Apparent magnitude | magnitude 5.99 |
| Absolute magnitude | magnitude −1.01 |
| Spectral type | K3I |
| Surface temperature | 3,920 K |
| Luminosity | 683 L☉ |
| Radius | 56.7 R☉ |
| Mass | 5.86 M☉ (estimated) |
| Right ascension (J2000) | 20h 03m 16.4s |
| Declination (J2000) | +18° 30′ 04″ |
| Space velocity (relative to the Sun) | 27.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.99). Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° 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 1206. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 15 million years.
The Sun seen from there
From a planet around HIP 98738, the Sun would look like a star of magnitude 11.83, in the direction where our sky has the constellation Puppis. 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.