The Corona Borealis constellation
CrB · Catalogue stars: 12
Why this name?
According to a well-known Greek legend, this is Ariadne’s crown. The god Dionysus placed it in the sky, where its jewels became stars.
A little history
The arc of stars was seen as a wreath in antiquity. Ptolemy included the constellation in his catalogue; ‘northern’ distinguishes it from Corona Australis, the Southern Crown.
Data
- IAU code
- CrB
- Catalogue stars
- 12
- Messier objects
- 0
- Brightest star
- Alphecca · 2.2ᵐ
Stars
Stars (HIP)
- HIP 76952 · 3.8ᵐ · A1Vs
- HIP 76127 · 4.1ᵐ · B6Vnn
- HIP 78159 · 4.1ᵐ · K3III
- HIP 77512 · 4.6ᵐ · G5III-IV
- HIP 76669 · 4.6ᵐ · B7V+...
- HIP 79119 · 4.7ᵐ · K0III-IV
- HIP 77655 · 4.8ᵐ · K0III-IV
- HIP 80181 · 4.9ᵐ · K0III
- HIP 78493 · 5.0ᵐ · A0p...
- HIP 75312 · 5.0ᵐ · G2V
Altitude above the horizon by latitude
| Latitude | Maximum altitude | Rise azimuth |
|---|---|---|
| +60° | 61° · never sets | — |
| +55° | 66° | 25° |
| +45° | 76° | 43° |
| +30° | 89° | 53° |
| 0° | 59° | 59° |
| −35° | 24° | 51° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 08:02 |
| February | 05:55 |
| March | 04:10 |
| April | 02:16 |
| May | 00:22 |
| June | 22:16 |
| July | 20:12 |
| August | 18:11 |
| September | 16:18 |
| October | 14:29 |
| November | 12:28 |
| December | 10:20 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.
Neighbouring constellations
In brief
Which is the brightest star in Corona Borealis?
Alphecca — 2.2ᵐ.