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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
north SunriseRise: 7:44  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
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All Constellations » Ursa Minor » 

4 Ursae Minoris

Altitude: 39.1°   Azimuth: 1.9°   Direction: North

4 Ursae Minoris is a giant star in the constellation of Ursa Minor.

4 Ursae Minoris visual magnitude is 4.82. Because of its moderate brightness, 4 Ursae Minoris should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 4 Ursae Minoris:


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

Altitude: 39.1°
Azimuth: 1.9°
Direction: North

Celestial coordinates and finder chart of 4 Ursae Minoris

4 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 4 Ursae Minoris are provided in the following table:

14h 08m 50s
+77° 32’ 50”
Ursa Minor

The simplified sky map below shows the position of 4 Ursae Minoris in the sky:

Finder chart 4 Ursae Minoris star
Simplified finder chart for 4 Ursae Minoris.

Visibility of 4 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

4 Ursae Minoris is circumpolar and transits at 09:21 UTC (altitude: 63.9°)

Digitized Sky Survey image of 4 Ursae Minoris

The image below is a photograph of 4 Ursae Minoris from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 4 Ursae Minoris is -0.032 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 4 Ursae Minoris star
DSS2 image of 4 Ursae Minoris. The red arrow shows the motion of 4 Ursae Minoris during the next 10000 years (-5.33 arcmin in Right Ascension and 5.67 arcmin in declination);

Distance of 4 Ursae Minoris from the Sun and relative movement

4 Ursae Minoris is distant 500.00 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

153.37 pc
500.00 ly
6 km/s
-0.032 arcsec/year
0.034 arcsec/year

Spectral properties of 4 Ursae Minoris

4 Ursae Minoris belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 4 Ursae Minoris is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 4 Ursae Minoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 4 Ursae Minoris

4 Ursae Minoris