18 Comae Berenices

Above the horizon. Rise: 4:03 | Tran: 12:16 | Set: 20:29

Alt: 32.12° Az: 268.95° Direction: West

18 Comae Berenices is a giant star of spectral class F5 in the constellation of Coma Berenices.

18 Comae Berenices visual magnitude is 5.48. Because of its faintness, 18 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 18 Comae Berenices. The red arrow shows the motion of 18 Comae Berenices during the next 10000 years (-5.17 arcmin in Right Ascension and -0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 30m 41s

Declination +23° 58’ 19”

Hour Angle 04h 31m 43s

Sideral Time 17h 02m 24s

J2000

Right Ascension 12h 29m 26s

Declination +24° 06’ 32”

Galactic Coordinates

Galactic Longitude 243.07°

Galactic Latitude 84.2°

Finder Chart

Simplified finder chart for 18 Comae Berenices.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.48

Class Giant

Absolute magnitude 1.37

Spectral Type F5III

Color Index (B-V) 0.43

Temperature 6724K

The red dot in the diagram below shows where 18 Comae Berenices is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 18 Comae Berenices. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

18 Comae Berenices is distant 215.89 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

Distance (parsec) 66.23

Distance (light year) 215.89

Radial Speed 25 km/s

Proper Motion RA -0.031 arcsec/y

Proper Motion Dec -0.001"/y

Alternative Designations

Flamsteed designation 18 Comae Berenices

Henry Draper Catalogue HD108722

SAO Catalogue SAO82333

Hipparcos Catalogue HIP60941

Durchmusterung Catalogue BD+24 2464

Visibility from Your Location

Today's 18 Comae Berenices rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 66.0° RISE 4:03

Max altitude: 62.5° TRANSIT 12:16

Azimuth: 294.0° SET 20:29

Set Location

Other stars in Coma Berenices