HR318

Above the horizon. Circumpolar today

Alt: 21.20° Az: 334.09° Direction: North-North-West

HR318 is a multiple giant star of spectral class K2 in the constellation of Cassiopeia.

HR318 visual magnitude is 6.38. Because of its faintness, HR318 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 HR318. The red arrow shows the motion of HR318 during the next 10000 years (3.83 arcmin in Right Ascension and -0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 01h 08m 38s

Declination +53° 37’ 49”

Hour Angle 09h 06m 25s

Sideral Time 10h 15m 04s

J2000

Right Ascension 01h 07m 09s

Declination +53° 29’ 53”

Galactic Coordinates

Galactic Longitude 125.3°

Galactic Latitude -9.3°

Finder Chart

Simplified finder chart for HR318.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.38

Class Giant

Absolute magnitude -1.72

Spectral Type K2III

Color Index (B-V)

Temperature 10125K

The red dot in the diagram below shows where HR318 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR318. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR318 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 HR318 double sysyem:

Main star magnitude 6.38

Secondary star magnitude 10.38

Magnitude difference 4

Separation 21.7 arcsec

Distance, Radial Speed, Proper Motion

HR318 is distant 1,358.33 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 416.67

Distance (light year) 1,358.33

Radial Speed 7 km/s

Proper Motion RA 0.023 arcsec/y

Proper Motion Dec -0.001"/y

Alternative Designations

Henry Draper Catalogue HD6540

SAO Catalogue SAO22021

Hipparcos Catalogue HIP5251

Durchmusterung Catalogue BD+52 262

Aitken Double Star Catalogue ADS915

Visibility from Your Location

HR318 is circumpolar and transits at 23:40 UTC (altitude: 87.8°)

Set Location

Other stars in Cassiopeia