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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:43 
Transit: 13:00 
Sunset: 21:18
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All Constellations » Ursa Minor » 

ε Ursae Minoris (epsilon Ursae Minoris)

Above the horizon.  Circumpolar today
Alt: 47.00°   Az: 10.18°   Direction: North

ε Ursae Minoris is a variable and double giant star of spectral class G5 in the constellation of Ursa Minor.

ε Ursae Minoris visual magnitude is 4.23. Because of its moderate brightness, ε 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 ε Ursae Minoris (epsilon Ursae Minoris) star
DSS2 image of ε Ursae Minoris. The red arrow shows the motion of ε Ursae Minoris during the next 10000 years (2.83 arcmin in Right Ascension and 1.00 arcmin in declination);

Celestial Coordinates

Apparent

16h 43m 26s
+81° 59’ 29”
15h 59m 45s
08h 43m 12s

J2000

16h 45m 58s
+82° 02’ 13”

Galactic Coordinates

115°
31.05°

Finder Chart

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Finder chart for ε Ursae Minoris (epsilon Ursae Minoris).

Magnitude, Color, Spectral Class

4.23
Giant

-0.90
G5III
5023K

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

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

Star System Properties

ε Ursae Minoris is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the ε Ursae Minoris double sysyem:

4.23
12.53
8.3
76.9 arcsec

Distance, Radial Speed, Proper Motion

ε Ursae Minoris is distant 346.44 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

106.27
346.44
-11 km/s
0.017 arcsec/y
0.006"/y

Alternative Designations

ε Ursae Minoris
(epsilon Ursae Minoris)
22 Ursae Minoris
SAO2770
SAO2770

Visibility from Your Location

ε Ursae Minoris (epsilon Ursae Minoris) is circumpolar and transits at 22:57 UTC (altitude: 59.5°)