We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:50  
clear_day Transit: 12:11  
SunsetSet: 17:32
sleep NighttimeWhat's Visible Now?
All Constellations » Coma Berenices » 

24 Comae Berenices

Altitude: 56.6°   Azimuth: 170.1°   Direction: South

24 Comae Berenices is a variable and double giant star in the constellation of Coma Berenices.

24 Comae Berenices visual magnitude is 5.02. Because of its reltive faintness, 24 Comae Berenices should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 24 Comae Berenices is -0.006 arcsec per year in Right Ascension and 0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 24 Comae Berenices star
DSS2 image of 24 Comae Berenices. The red arrow shows the motion of 24 Comae Berenices during the next 10000 years (-1.00 arcmin in Right Ascension and 3.83 arcmin in declination);

Key facts about 24 Comae Berenices


24 Comae Berenices is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 56.6°
Azimuth: 170.1°
Direction: South

Celestial coordinates and finder chart of 24 Comae Berenices

24 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 24 Comae Berenices are provided in the following table:

12h 35m 07s
+18° 22’ 36”
Coma Berenices

The simplified sky map below shows the position of 24 Comae Berenices in the sky:

Finder chart 24 Comae Berenices star
Simplified finder chart for 24 Comae Berenices.

Visibility of 24 Comae Berenices from your location

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

Today's 24 Comae Berenices rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 71.6°
Max altitude: 56.9°
Azimuth: 288.4°

Distance of 24 Comae Berenices from the Sun and relative movement

24 Comae Berenices is distant 613.94 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

188.32 pc
613.94 ly
4 km/s
-0.006 arcsec/year
0.023 arcsec/year

Spectral properties of 24 Comae Berenices

24 Comae Berenices belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 24 Comae Berenices is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 24 Comae Berenices. Attribution: Richard Powell / CC BY-SA

24 Comae Berenices star system properties

24 Comae Berenices is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 24 Comae Berenices double sysyem:

20.2 arcsec

Alternative designations of 24 Comae Berenices

24 Comae Berenices