Star · G2II
Matar
Matar is a bright giant star of spectral type G2II in the constellation Pegasus, 196.1 light-years from the Sun.
| Other names | η Peg · HIP 112158 |
|---|---|
| Constellation | Pegasus |
| Distance | 196.1 light-years (60.1 pc) |
| Apparent magnitude | magnitude 2.93 |
| Absolute magnitude | magnitude −0.97 |
| Spectral type | G2II |
| Surface temperature | 5,130 K |
| Luminosity | 271 L☉ |
| Radius | 20.9 R☉ |
| Mass | 4.5 M☉ (estimated) |
| Right ascension (J2000) | 22h 43m 00.1s |
| Declination (J2000) | +30° 13′ 17″ |
| Space velocity (relative to the Sun) | 8.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 2.93). Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° 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 1830. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.5 million years.
The Sun seen from there
From a planet around Matar, the Sun would look like a star of magnitude 8.73, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 112368 2.92 light-years
- HIP 113069 15.5 light-years
- Scheat 17.2 light-years
- HIP 112422 18.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.