Star · G5III
δ CrB
δ CrB is a giant star of spectral type G5III in the constellation Corona Borealis, 167.3 light-years from the Sun.
| Other names | HIP 77512 |
|---|---|
| Constellation | Corona Borealis |
| Distance | 167.3 light-years (51.3 pc) |
| Apparent magnitude | magnitude 4.59 |
| Absolute magnitude | magnitude 1.04 |
| Spectral type | G5III |
| Surface temperature | 5,300 K |
| Luminosity | 40.2 L☉ |
| Radius | 7.53 R☉ |
| Mass | 2.61 M☉ (estimated) |
| Right ascension (J2000) | 15h 49m 35.6s |
| Declination (J2000) | +26° 04′ 06″ |
| Space velocity (relative to the Sun) | 32.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.59). Visible from the whole Northern Hemisphere and south to latitude 64° S. North of latitude 64° N 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 1859. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.0 million years.
The Sun seen from there
From a planet around δ CrB, the Sun would look like a star of magnitude 8.38, in the direction where our sky has the constellation Fornax. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ULAS J154914.45+262145.6 7.52 light-years
- HIP 77152 11.0 light-years
- π Ser 14.8 light-years
- 2MASS J16005759+3021571 14.9 light-years
- SDSS J154628.38+253634.3 15.7 light-years
- HIP 76674 16.0 light-years
- HIP 76374 16.6 light-years
- HIP 76911 17.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.