2 Comae Berenices

Above the horizon. Rise: 11:06 | Tran: 19:00 | Set: 2:59

Alt: 36.58° Az: 101.85° Direction: South-South-West

2 Comae Berenices is a double hypergiant star of spectral class F0 in the constellation of Coma Berenices.

2 Comae Berenices visual magnitude is 5.87. Because of its faintness, 2 Comae Berenices is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

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);

Celestial Coordinates

Apparent

Right Ascension 12h 05m 34s

Declination +21° 19’ 02”

Hour Angle 20h 09m 52s

Sidereal Time 08h 15m 27s

J2000

Right Ascension 12h 04m 16s

Declination +21° 27’ 33”

Galactic Coordinates

Galactic Longitude 238.22°

Galactic Latitude 77.86°

Finder Chart

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Finder chart for 2 Comae Berenices.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.87

Class Hypergiant

Absolute magnitude 0.66

Spectral Type F0IV

Color Index (B-V) 0.22

Temperature 8011K

The red dot in the diagram below shows where 2 Comae Berenices is situated in the Hertzsprung–Russell diagram.

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

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:

Main star magnitude 5.87

Secondary star magnitude 7.27

Magnitude difference 1.4

Separation 3.6 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 110.01

Distance (light year) 358.64

Radial Speed 6 km/s

Proper Motion RA 0.036 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Flamsteed designation 2 Comae Berenices

Henry Draper Catalogue HD104827

SAO Catalogue SAO82123

Hipparcos Catalogue HIP58858

Durchmusterung Catalogue BD+22 2437

Aitken Double Star Catalogue ADS8406

Visibility from Your Location

Today's 2 Comae Berenices rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 68.7° RISE 11:06

Max altitude: 59.8° TRANSIT 19:00

Azimuth: 291.3° SET 2:59

Set Location

Other stars in Coma Berenices