We use cookies to deliver essential features and to measure their performance. Learn more.
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:07 
Transit: 12:48 
Sunset: 18:29
sleep   (Nighttime)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Canes Venatici » 

Cor Caroli - α2 Canum Venaticorum (alpha2 Canum Venaticorum)

Above the horizon.  Rise: 1:41 | Tran: 13:02 | Set: 0:23
Alt: 7.41°   Az: 33.11°   Direction: North-North-East

Cor Caroli, also designated as α2 Canum Venaticorum (alpha2 Canum Venaticorum), is a variable and double hypergiant star of spectral class A0 in the constellation of Canes Venatici.

Cor Caroli visual magnitude is 2.9. Because of its brightness, Cor Caroli is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Cor Caroli - α2 Canum Venaticorum (alpha2 Canum Venaticorum) star
DSS2 image of Cor Caroli. The red arrow shows the motion of Cor Caroli during the next 1000 years (-3.90 arcmin in Right Ascension and 0.93 arcmin in declination);

Celestial Coordinates

Apparent

12h 57m 11s
+38° 11’ 04”
14h 54m 14s
03h 51m 25s

J2000

12h 56m 01s
+38° 19’ 05”

Galactic Coordinates

118.29°
78.77°

Finder Chart

Finder chart Cor Caroli - α2 Canum Venaticorum (alpha2 Canum Venaticorum) star
Simplified finder chart for Cor Caroli - α2 Canum Venaticorum (alpha2 Canum Venaticorum).

Magnitude, Color, Spectral Class

2.9
Hypergiant
Cor Caroli is also a SiEuHg chemically peculiar star.

0.26
A0
11920K

The red dot in the diagram below shows where Cor Caroli is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of Cor Caroli. Attribution: Richard Powell / CC BY-SA

Star System Properties

Cor Caroli is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Cor Caroli double sysyem:

2.9
5.6
2.7
19.4 arcsec

Distance, Radial Speed, Proper Motion

Cor Caroli is distant 110.14 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

33.78
110.14
-3 km/s
-0.234 arcsec/y
0.056"/y

Alternative Designations

Cor Caroli
α2 Canum Venaticorum
(alpha2 Canum Venaticorum)
12 Canum Venaticorum
SAO63257
SAO63257

Visibility from Your Location

Today's Cor Caroli - α2 Canum Venaticorum (alpha2 Canum Venaticorum) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.8°
Max altitude: 76.7°
Azimuth: 308.2°