Star · F0III
24 Cnc
24 Cnc is a giant star of spectral type F0III in the constellation Cancer, 226.0 light-years from the Sun.
| Other names | HIP 41389 |
|---|---|
| Constellation | Cancer |
| Distance | 226.0 light-years (69.3 pc) |
| Apparent magnitude | magnitude 6.51 |
| Absolute magnitude | magnitude 2.31 |
| Spectral type | F0III |
| Surface temperature | 7,160 K |
| Luminosity | 10.2 L☉ |
| Radius | 2.07 R☉ |
| Mass | 1.79 M☉ (estimated) |
| Right ascension (J2000) | 8h 26m 39.8s |
| Declination (J2000) | +24° 32′ 03″ |
| Space velocity (relative to the Sun) | 33.9 km/s |
In the sky
Too faint for the naked eye (magnitude 6.51); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 65° S. North of latitude 65° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1800. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.0 million years.
The Sun seen from there
From a planet around 24 Cnc, the Sun would look like a star of magnitude 9.03, in the direction where our sky has the constellation Capricornus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J081814.38+245337.4 8.31 light-years
- ULAS J081407.51+245200.9 12.0 light-years
- SDSS J083429.19+230855.0 13.9 light-years
- υ¹ Cnc 14.3 light-years
- HIP 39893 15.9 light-years
- 2MASS J08443811+2226161 19.3 light-years
- K2-122 19.5 light-years
- SDSS J083027.24+220345.0 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.