θ Ursae Minoris (theta Ursae Minoris)

Above the horizon. Circumpolar today

Alt: 53.65° Az: 339.27° Direction: South-West

θ Ursae Minoris is a giant star of spectral class K5 in the constellation of Ursa Minor.

θ Ursae Minoris visual magnitude is 4.96. Because of its moderate brightness, θ Ursae Minoris 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.

Image of θ Ursae Minoris (theta Ursae Minoris) star

DSS2 image of θ Ursae Minoris. The red arrow shows the motion of θ Ursae Minoris during the next 10000 years (-8.17 arcmin in Right Ascension and 1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 30m 42s

Declination +77° 15’ 49”

Hour Angle 04h 48m 19s

Sidereal Time 20h 19m 02s

J2000

Right Ascension 15h 31m 24s

Declination +77° 20’ 57”

Galactic Coordinates

Galactic Longitude 112.85°

Galactic Latitude 36.46°

Finder Chart

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Finder chart for θ Ursae Minoris (theta Ursae Minoris).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.96

Class Giant

Absolute magnitude -2.07

Spectral Type K5III

Color Index (B-V) 1.58

Temperature 3677K

The red dot in the diagram below shows where θ Ursae Minoris is situated in the Hertzsprung–Russell diagram.

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

Distance, Radial Speed, Proper Motion

θ Ursae Minoris is distant 831.63 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

Distance (parsec) 255.10

Distance (light year) 831.63

Radial Speed -25 km/s

Proper Motion RA -0.049 arcsec/y

Proper Motion Dec 0.01"/y

Alternative Designations

Bayer designation θ Ursae Minoris
(theta Ursae Minoris)

Flamsteed designation 15 Ursae Minoris

Henry Draper Catalogue HD139669

SAO Catalogue SAO8274

Hipparcos Catalogue HIP76008

Durchmusterung Catalogue BD+77 592

FK5 Catalogue 3229

Visibility from Your Location

θ Ursae Minoris (theta Ursae Minoris) is circumpolar and transits at 21:25 UTC (altitude: 64.2°)

Set Location

Other stars in Ursa Minor