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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: 6:48  
clear_day Transit: 12:11  
SunsetSet: 17:34
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Ursa Minor » 

ζ Ursae Minoris (zeta Ursae Minoris)

Altitude: 63.7°   Azimuth: 0.0°   Direction: North

ζ Ursae Minoris is a variable main-sequence star in the constellation of Ursa Minor.

ζ Ursae Minoris visual magnitude is 4.32. Because of its moderate brightness, ζ Ursae Minoris should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of ζ Ursae Minoris is 0.02 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ζ Ursae Minoris (zeta Ursae Minoris) star
DSS2 image of ζ Ursae Minoris. The red arrow shows the motion of ζ Ursae Minoris during the next 10000 years (3.33 arcmin in Right Ascension and -0.17 arcmin in declination);

Key facts about ζ Ursae Minoris

4.32
Main-sequence

ζ Ursae Minoris (zeta Ursae Minoris) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 63.7°
Azimuth: 0.0°
Direction: North

Celestial coordinates and finder chart of ζ Ursae Minoris

ζ 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 ζ Ursae Minoris are provided in the following table:

15h 44m 03s
+77° 47’ 39”
112.68°
35.66°
Ursa Minor

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

Finder chart ζ Ursae Minoris (zeta Ursae Minoris) star
Simplified finder chart for ζ Ursae Minoris (zeta Ursae Minoris).

Visibility of ζ 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

ζ Ursae Minoris (zeta Ursae Minoris) is circumpolar and transits at 05:13 UTC (altitude: 63.7°)

Distance of ζ Ursae Minoris from the Sun and relative movement

ζ Ursae Minoris is distant 375.58 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

115.21 pc
375.58 ly
-13 km/s
0.02 arcsec/year
-0.001 arcsec/year

Spectral properties of ζ Ursae Minoris

ζ Ursae Minoris belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.

-0.99
A3V
9652K

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

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

Alternative designations of ζ Ursae Minoris

ζ Ursae Minoris
(zeta Ursae Minoris)
16 Ursae Minoris
SAO8328
SAO8328