Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

11 Comae Berenices

11 Comae Berenices is a double giant star in the constellation of Coma Berenices.

11 Comae Berenices visual magnitude is 4.74. Because of its moderate brightness, 11 Comae Berenices should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 11 Comae Berenices:

4.74
Giant
11 Comae Berenices is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 11 Comae Berenices

11 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 11 Comae Berenices are provided in the following table:

12h 20m 43s
+17° 47’ 34”
264.15°
78.28°
Coma Berenices

The simplified sky map below shows the position of 11 Comae Berenices in the sky:

Finder chart 11 Comae Berenices star
Simplified finder chart for 11 Comae Berenices.

Visibility of 11 Comae Berenices from your location

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

Today's 11 Comae Berenices rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 72.2°
Max altitude: 56.3°
Azimuth: 287.8°
11 Comae Berenices is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 11 Comae Berenices

The image below is a photograph of 11 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 11 Comae Berenices is -0.111 arcsec per year in Right Ascension and 0.092 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 11 Comae Berenices star
DSS2 image of 11 Comae Berenices. The red arrow shows the motion of 11 Comae Berenices during the next 1000 years (-1.85 arcmin in Right Ascension and 1.53 arcmin in declination);

Distance of 11 Comae Berenices from the Sun and relative movement

11 Comae Berenices is distant 360.62 light years from the Sun and it is moving far from the Sun at the speed of 42 kilometers per second.

110.62 pc
360.62 ly
42 km/s
-0.111 arcsec/year
0.092 arcsec/year

Spectral properties of 11 Comae Berenices

11 Comae Berenices belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

-0.48
G8III
4719K

The red dot in the diagram below shows where 11 Comae Berenices is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 11 Comae Berenices. Attribution: Richard Powell / CC BY-SA

11 Comae Berenices star system properties

11 Comae Berenices is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 11 Comae Berenices double sysyem:

4.74
12.74
8
9.1 arcsec

Alternative designations of 11 Comae Berenices

11 Comae Berenices
SAO100053
SAO100053