Star · F7V
Gl 398.1
Gl 398.1 is a main-sequence star of spectral type F7V in the constellation Hydra, 80.7 light-years from the Sun.
| Other names | HIP 51933 |
|---|---|
| Constellation | Hydra |
| Distance | 80.7 light-years (24.8 pc) |
| Apparent magnitude | magnitude 5.71 |
| Absolute magnitude | magnitude 3.74 |
| Spectral type | F7V |
| Surface temperature | 6,260 K |
| Luminosity | 2.77 L☉ |
| Radius | 1.41 R☉ |
| Mass | 1.29 M☉ (estimated) |
| Right ascension (J2000) | 10h 36m 32.4s |
| Declination (J2000) | −12° 13′ 49″ |
| Space velocity (relative to the Sun) | 85.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.71). Visible from the whole Southern Hemisphere and north to latitude 78° N. South of latitude 78° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1945. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around Gl 398.1, the Sun would look like a star of magnitude 6.80, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 52369 4.10 light-years
- WISE J103907.73-160002.9 10.0 light-years
- LTT 3780 10.7 light-years
- DENIS J1004403-131818 11.0 light-years
- HIP 49366 11.7 light-years
- HIP 50696 12.2 light-years
- LP 791-18 12.7 light-years
- GJ 3581 12.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.