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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
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All Constellations » Ursa Minor » 

20 Ursae Minoris

Altitude: 48.8°   Azimuth: 337.2°   Direction: North-North-West

20 Ursae Minoris is a sub-giant star in the constellation of Ursa Minor.

20 Ursae Minoris visual magnitude is 6.39. Because of its reltive faintness, 20 Ursae Minoris should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 20 Ursae Minoris is -0.041 arcsec per year in Right Ascension and 0.034 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 20 Ursae Minoris star
DSS2 image of 20 Ursae Minoris. The red arrow shows the motion of 20 Ursae Minoris during the next 10000 years (-6.83 arcmin in Right Ascension and 5.67 arcmin in declination);

Key facts about 20 Ursae Minoris


20 Ursae Minoris is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 48.8°
Azimuth: 337.2°
Direction: North-North-West

Celestial coordinates and finder chart of 20 Ursae Minoris

20 Ursae Minoris is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 20 Ursae Minoris are provided in the following table:

16h 12m 32s
+75° 12’ 38”
Ursa Minor

The simplified sky map below shows the position of 20 Ursae Minoris in the sky:

Finder chart 20 Ursae Minoris star
Simplified finder chart for 20 Ursae Minoris.

Visibility of 20 Ursae Minoris from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

20 Ursae Minoris is circumpolar and transits at 05:18 UTC (altitude: 66.3°)

Distance of 20 Ursae Minoris from the Sun and relative movement

20 Ursae Minoris is distant 765.26 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

234.74 pc
765.26 ly
-26 km/s
-0.041 arcsec/year
0.034 arcsec/year

Spectral properties of 20 Ursae Minoris

20 Ursae Minoris belongs to spectral class K2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where 20 Ursae Minoris is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 20 Ursae Minoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 20 Ursae Minoris

20 Ursae Minoris