Star · M2
GJ 1198
GJ 1198 is a main-sequence star of spectral type M2 in the constellation Scorpius, 70.4 light-years from the Sun.
| Constellation | Scorpius |
|---|---|
| Distance | 70.4 light-years (21.6 pc) |
| Apparent magnitude | magnitude 14.70 |
| Absolute magnitude | magnitude 13.03 |
| Spectral type | M2 |
| Surface temperature | 3,520 K |
| Luminosity | 0.00294 L☉ |
| Radius | 0.146 R☉ |
| Mass | 0.15 M☉ (estimated) |
| Right ascension (J2000) | 16h 08m 14.1s |
| Declination (J2000) | −10° 26′ 23″ |
| Space velocity (relative to the Sun) | 138.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.70. Visible from the whole Southern Hemisphere and north to latitude 80° N. South of latitude 80° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1956. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around GJ 1198, the Sun would look like a star of magnitude 6.50, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 80612 6.17 light-years
- Gl 621 6.25 light-years
- GJ 2121 9.24 light-years
- WISEA J153429.75-104303.3 10.2 light-years
- CWISE J163041.79-064338.3 11.7 light-years
- Gl 586B 12.3 light-years
- Gl 586C 12.4 light-years
- PSO J246.1033-19.6194 13.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.