HR4668

Above the horizon. Rise: 12:11 | Tran: 21:46 | Set: 7:24

Alt: 28.29° Az: 71.64° Direction: East-North-East

HR4668 is a variable hypergiant star of spectral class K0 in the constellation of Coma Berenices.

HR4668 visual magnitude is 5. Because of its moderate brightness, HR4668 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 HR4668. The red arrow shows the motion of HR4668 during the next 1000 years (-0.88 arcmin in Right Ascension and -1.85 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 17m 46s

Declination +32° 55’ 14”

Hour Angle 18h 21m 22s

Sidereal Time 06h 39m 09s

J2000

Right Ascension 12h 16m 30s

Declination +33° 03’ 41”

Galactic Coordinates

Galactic Longitude 172.65°

Galactic Latitude 80.4°

Finder Chart

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Finder chart for HR4668.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5

Class Hypergiant

Absolute magnitude 0.14

Spectral Type K0III

Color Index (B-V) 1.14

Temperature 4430K

The red dot in the diagram below shows where HR4668 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4668. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4668 is distant 306.10 light years from the Sun and it is moving towards the Sun at the speed of 42 kilometers per second.

Distance (parsec) 93.90

Distance (light year) 306.10

Radial Speed -42 km/s

Proper Motion RA -0.053 arcsec/y

Proper Motion Dec -0.111"/y

Alternative Designations

Henry Draper Catalogue HD106760

SAO Catalogue SAO62928

Hipparcos Catalogue HIP59856

Durchmusterung Catalogue BD+33 2213

FK5 Catalogue 2983

General Catalogue of Variable Stars Var?

Visibility from Your Location

Today's HR4668 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 57.1° RISE 12:11

Max altitude: 71.4° TRANSIT 21:46

Azimuth: 302.9° SET 7:24

Set Location

Other stars in Coma Berenices