HR3221

Above the horizon. Circumpolar today

Alt: 64.01° Az: 307.30° Direction: North-West

HR3221 is a multiple main-sequence star of spectral class A7 in the constellation of Ursa Major.

HR3221 visual magnitude is 6.45. Because of its faintness, HR3221 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 HR3221. The red arrow shows the motion of HR3221 during the next 10000 years (-2.17 arcmin in Right Ascension and 1.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 08h 17m 57s

Declination +60° 18’ 04”

Hour Angle 02h 58m 52s

Sidereal Time 11h 16m 50s

J2000

Right Ascension 08h 15m 50s

Declination +60° 22’ 50”

Galactic Coordinates

Galactic Longitude 156.59°

Galactic Latitude 33.69°

Finder Chart

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Finder chart for HR3221.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.45

Class Main-sequence

Absolute magnitude 0.52

Spectral Type A7V

Color Index (B-V) 0.2

Temperature 8163K

The red dot in the diagram below shows where HR3221 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3221. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3221 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 HR3221 double sysyem:

Main star magnitude 6.45

Secondary star magnitude 10.55

Magnitude difference 4.1

Separation 48.6 arcsec

Distance, Radial Speed, Proper Motion

HR3221 is distant 499.23 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

Distance (parsec) 153.14

Distance (light year) 499.23

Radial Speed -16 km/s

Proper Motion RA -0.013 arcsec/y

Proper Motion Dec 0.007"/y

Alternative Designations

Henry Draper Catalogue HD68457

SAO Catalogue SAO14479

Hipparcos Catalogue HIP40474

Durchmusterung Catalogue BD+60 1119

Aitken Double Star Catalogue ADS6680

Visibility from Your Location

HR3221 is circumpolar and transits at 16:43 UTC (altitude: 81.2°)

Set Location

Other stars in Ursa Major