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

2 Comae Berenices

2 Comae Berenices is a double hypergiant star in the constellation of Coma Berenices.

2 Comae Berenices visual magnitude is 5.87. Because of its reltive faintness, 2 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 2 Comae Berenices:

5.87
Hypergiant
2 Comae Berenices is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 2 Comae Berenices

2 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 2 Comae Berenices are provided in the following table:

12h 04m 16s
+21° 27’ 33”
238.22°
77.86°
Coma Berenices

The simplified sky map below shows the position of 2 Comae Berenices in the sky:

Finder chart 2 Comae Berenices star
Simplified finder chart for 2 Comae Berenices.

Visibility of 2 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 2 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: 68.5°
Max altitude: 60.0°
Azimuth: 291.5°
2 Comae Berenices is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 2 Comae Berenices

The image below is a photograph of 2 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 2 Comae Berenices is 0.036 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 2 Comae Berenices star
DSS2 image of 2 Comae Berenices. The red arrow shows the motion of 2 Comae Berenices during the next 10000 years (6.00 arcmin in Right Ascension and -0.67 arcmin in declination);

Distance of 2 Comae Berenices from the Sun and relative movement

2 Comae Berenices is distant 358.64 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

110.01 pc
358.64 ly
6 km/s
0.036 arcsec/year
-0.004 arcsec/year

Spectral properties of 2 Comae Berenices

2 Comae Berenices belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.

0.66
F0IV
8011K

The red dot in the diagram below shows where 2 Comae Berenices is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 2 Comae Berenices. Attribution: Richard Powell / CC BY-SA

2 Comae Berenices star system properties

2 Comae Berenices 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 2 Comae Berenices double sysyem:

5.87
7.27
1.4
3.6 arcsec

Alternative designations of 2 Comae Berenices

2 Comae Berenices
SAO82123
SAO82123