Star · M0III
23 Leo
23 Leo is a giant star of spectral type M0III in the constellation Leo, 1,011 light-years from the Sun.
| Other names | HIP 48324 |
|---|---|
| Constellation | Leo |
| Distance | 1,011 light-years (310.0 pc) |
| Apparent magnitude | magnitude 6.45 |
| Absolute magnitude | magnitude −1.01 |
| Spectral type | M0III |
| Surface temperature | 3,620 K |
| Luminosity | 1,030 L☉ |
| Radius | 81.7 R☉ |
| Mass | 6.59 M☉ (estimated) |
| Right ascension (J2000) | 9h 51m 02.0s |
| Declination (J2000) | +13° 03′ 58″ |
| Space velocity (relative to the Sun) | 31.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.45). Visible from the whole Northern Hemisphere and south to latitude 77° S. North of latitude 77° N 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 1015. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 18 million years.
The Sun seen from there
From a planet around 23 Leo, the Sun would look like a star of magnitude 12.29, in the direction where our sky has the constellation Capricornus. 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.