23 Comae Berenices

Below the horizon. Rise: 12:37 | Tran: 19:47 | Set: 3:01

Alt: -23.73° Az: 31.31° Direction: South

23 Comae Berenices is a double hypergiant star of spectral class A0 in the constellation of Coma Berenices.

23 Comae Berenices visual magnitude is 4.81. Because of its moderate brightness, 23 Comae Berenices is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of 23 Comae Berenices. The red arrow shows the motion of 23 Comae Berenices during the next 10000 years (-10.83 arcmin in Right Ascension and 3.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 36m 07s

Declination +22° 29’ 20”

Hour Angle 14h 03m 57s

Sidereal Time 02h 40m 04s

J2000

Right Ascension 12h 34m 51s

Declination +22° 37’ 45”

Galactic Coordinates

Galactic Longitude 262.15°

Galactic Latitude 84.14°

Finder Chart

Loading map...

Finder chart for 23 Comae Berenices.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.81

Class Hypergiant

Absolute magnitude -0.43

Spectral Type A0IV

Color Index (B-V) 0

Temperature 10125K

The red dot in the diagram below shows where 23 Comae Berenices is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 23 Comae Berenices. Attribution: Richard Powell / CC BY-SA

Star System Properties

23 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 23 Comae Berenices double sysyem:

Main star magnitude 4.81

Secondary star magnitude 7.21

Magnitude difference 2.4

Separation 0.4 arcsec

Distance, Radial Speed, Proper Motion

23 Comae Berenices is distant 364.65 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

Distance (parsec) 111.86

Distance (light year) 364.65

Radial Speed -16 km/s

Proper Motion RA -0.065 arcsec/y

Proper Motion Dec 0.021"/y

Alternative Designations

Flamsteed designation 23 Comae Berenices

Henry Draper Catalogue HD109485

SAO Catalogue SAO82390

Hipparcos Catalogue HIP61394

Durchmusterung Catalogue BD+23 2475

FK5 Catalogue 1323

Visibility from Your Location

Today's 23 Comae Berenices rise, transit and set times from Victoria, United States are the following (all times relative to the local timezone America/New_York):

Azimuth: 67.5° RISE 12:37

Max altitude: 75.5° TRANSIT 19:47

Azimuth: 292.5° SET 3:01

Name:	Victoria, United States
Latitude:	36° 59' 41.6" N
Longitude:	78° 13' 37.9" W
Timezone:	America/New_York

Set Location

Other stars in Coma Berenices