21 Canum Venaticorum

21 Canum Venaticorum is a variable hypergiant star in the constellation of Canes Venatici.

21 Canum Venaticorum visual magnitude is 5.15. Because of its reltive faintness, 21 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 21 Canum Venaticorum:

Celestial coordinates and finder chart of 21 Canum Venaticorum

21 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 21 Canum Venaticorum are provided in the following table:

The simplified sky map below shows the position of 21 Canum Venaticorum in the sky:

Visibility of 21 Canum Venaticorum from your location

21 Canum Venaticorum is circumpolar and transits at 01:13 UTC (altitude: 88.2°)

Digitized Sky Survey image of 21 Canum Venaticorum

The image below is a photograph of 21 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 21 Canum Venaticorum is -0.033 arcsec per year in Right Ascension and 0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Distance of 21 Canum Venaticorum from the Sun and relative movement

21 Canum Venaticorum is distant 275.11 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Spectral properties of 21 Canum Venaticorum

21 Canum Venaticorum belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

The red dot in the diagram below shows where 21 Canum Venaticorum is situated in the Hertzsprung–Russell diagram.

Alternative designations of 21 Canum Venaticorum