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🌎  Greenwich, United Kingdom [change]

α1 Canum Venaticorum (alpha1 Canum Venaticorum)

α1 Canum Venaticorum is a double hypergiant star in the constellation of Canes Venatici.

α1 Canum Venaticorum visual magnitude is 5.6. Because of its reltive faintness, α1 Canum Venaticorum should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about α1 Canum Venaticorum:

5.6
Hypergiant
α1 Canum Venaticorum (alpha1 Canum Venaticorum) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 38°.

Celestial coordinates and finder chart of α1 Canum Venaticorum

α1 Canum Venaticorum is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of α1 Canum Venaticorum are provided in the following table:

12h 56m 00s
+38° 18’ 52”
118.31°
78.77°
Canes Venatici

The simplified sky map below shows the position of α1 Canum Venaticorum in the sky:

Finder chart α1 Canum Venaticorum (alpha1 Canum Venaticorum) star
Simplified finder chart for α1 Canum Venaticorum (alpha1 Canum Venaticorum).

Visibility of α1 Canum Venaticorum from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's α1 Canum Venaticorum (alpha1 Canum Venaticorum) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.7°
Max altitude: 76.8°
Azimuth: 308.3°
α1 Canum Venaticorum (alpha1 Canum Venaticorum) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of α1 Canum Venaticorum

The image below is a photograph of α1 Canum Venaticorum from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of α1 Canum Venaticorum is -0.236 arcsec per year in Right Ascension and 0.062 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of α1 Canum Venaticorum (alpha1 Canum Venaticorum) star
DSS2 image of α1 Canum Venaticorum. The red arrow shows the motion of α1 Canum Venaticorum during the next 1000 years (-3.93 arcmin in Right Ascension and 1.03 arcmin in declination);

Distance of α1 Canum Venaticorum from the Sun and relative movement

α1 Canum Venaticorum is distant 81.60 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

25.03 pc
81.60 ly
-3 km/s
-0.236 arcsec/year
0.062 arcsec/year

Spectral properties of α1 Canum Venaticorum

α1 Canum Venaticorum belongs to spectral class F0 and has a luminosity class of V corresponding to a hypergiant star.

3.61
F0V
7217K

The red dot in the diagram below shows where α1 Canum Venaticorum is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of α1 Canum Venaticorum. Attribution: Richard Powell / CC BY-SA

α1 Canum Venaticorum star system properties

α1 Canum Venaticorum 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 α1 Canum Venaticorum double sysyem:

5.6
8.3
2.7
19.4 arcsec

Alternative designations of α1 Canum Venaticorum

α1 Canum Venaticorum
(alpha1 Canum Venaticorum)
12 Canum Venaticorum
SAO63256
SAO63256