40 Comae Berenices
40 Comae Berenices is a variable giant star in the constellation of Coma Berenices.
40 Comae Berenices visual magnitude is 5.6. Because of its reltive faintness, 40 Comae Berenices 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 40 Comae Berenices:
Celestial coordinates and finder chart of 40 Comae Berenices
40 Comae Berenices is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 40 Comae Berenices are provided in the following table:
The simplified sky map below shows the position of 40 Comae Berenices in the sky:
Visibility of 40 Comae Berenices from your location
Digitized Sky Survey image of 40 Comae Berenices
The image below is a photograph of 40 Comae Berenices 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 40 Comae Berenices is 0.025 arcsec per year in Right Ascension and -0.049 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 40 Comae Berenices from the Sun and relative movement
40 Comae Berenices is distant 571.93 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.
Spectral properties of 40 Comae Berenices
40 Comae Berenices belongs to spectral class M5 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where 40 Comae Berenices is situated in the Hertzsprung–Russell diagram.