HR979

Above the horizon. Circumpolar today

Alt: 4.20° Az: 17.25° Direction: North-North-East

HR979 is a double main-sequence star of spectral class B9 in the constellation of Perseus.

HR979 visual magnitude is 6.45. Because of its faintness, HR979 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 HR979. The red arrow shows the motion of HR979 during the next 10000 years (2.50 arcmin in Right Ascension and -3.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 03h 18m 49s

Declination +40° 34’ 22”

Hour Angle 13h 31m 40s

Sidereal Time 16h 50m 29s

J2000

Right Ascension 03h 17m 11s

Declination +40° 28’ 59”

Galactic Coordinates

Galactic Longitude 150.73°

Galactic Latitude -14.39°

Finder Chart

Simplified finder chart for HR979.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.45

Class Main-sequence

HR979 is also a Si chemically peculiar star.

Absolute magnitude -0.22

Spectral Type B9V

Color Index (B-V)

Temperature 10125K

The red dot in the diagram below shows where HR979 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR979. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR979 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 HR979 double sysyem:

Main star magnitude 6.45

Secondary star magnitude 7.35

Magnitude difference 0.9

Separation 3.8 arcsec

Distance, Radial Speed, Proper Motion

HR979 is distant 704.10 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 215.98

Distance (light year) 704.10

Radial Speed -8 km/s

Proper Motion RA 0.015 arcsec/y

Proper Motion Dec -0.023"/y

Alternative Designations

Henry Draper Catalogue HD20283

SAO Catalogue SAO38700

Hipparcos Catalogue HIP15282

Durchmusterung Catalogue BD+39 743

Aitken Double Star Catalogue ADS2443

Visibility from Your Location

HR979 is circumpolar and transits at 01:46 UTC (altitude: 79.1°)

Set Location

Other stars in Perseus