HR861

Above the horizon. Circumpolar today

Alt: 34.60° Az: 26.74° Direction: North-North-East

HR861 is a variable and double supergiant star of spectral class K3 in the constellation of Cassiopeia.

HR861 visual magnitude is 6.24. Because of its faintness, HR861 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 HR861. The red arrow shows the motion of HR861 during the next 100000 years (10.00 arcmin in Right Ascension and -3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 02h 58m 32s

Declination +64° 26’ 00”

Hour Angle 15h 56m 28s

Sidereal Time 18h 55m 00s

J2000

Right Ascension 02h 56m 24s

Declination +64° 19’ 56”

Galactic Coordinates

Galactic Longitude 135.96°

Galactic Latitude 4.67°

Finder Chart

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Finder chart for HR861.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.24

Class Supergiant

Absolute magnitude -1.73

Spectral Type K3I

Color Index (B-V) 2.03

Temperature 3139K

The red dot in the diagram below shows where HR861 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR861. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR861 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR861 double sysyem:

Main star magnitude 6.24

Secondary star magnitude 9.64

Magnitude difference 3.4

Separation 115.6 arcsec

Distance, Radial Speed, Proper Motion

HR861 is distant 1,278.43 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 392.16

Distance (light year) 1,278.43

Radial Speed -22 km/s

Proper Motion RA 0.006 arcsec/y

Proper Motion Dec -0.002"/y

Alternative Designations

Henry Draper Catalogue HD17958

SAO Catalogue SAO12519

Hipparcos Catalogue HIP13700

Durchmusterung Catalogue BD+63 369

General Catalogue of Variable Stars 985

Visibility from Your Location

HR861 is circumpolar and transits at 11:36 UTC (altitude: 77.0°)

Set Location

Other stars in Cassiopeia