We use cookies to deliver essential features and to measure their performance. Learn more.
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 6:33 
Transit: 12:55 
Sunset: 19:17
sunny   (Daytime)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Ursa Minor » 

η Ursae Minoris (eta Ursae Minoris)

Above the horizon.  Circumpolar today
Alt: 40.48°   Az: 13.25°   Direction: North-North-East

η Ursae Minoris is a double main-sequence star of spectral class F5 in the constellation of Ursa Minor.

η Ursae Minoris visual magnitude is 4.95. Because of its moderate brightness, η 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 η Ursae Minoris (eta Ursae Minoris) star
DSS2 image of η Ursae Minoris. The red arrow shows the motion of η Ursae Minoris during the next 1000 years (-1.42 arcmin in Right Ascension and 4.20 arcmin in declination);

Celestial Coordinates

Apparent

16h 16m 49s
+75° 41’ 44”
14h 59m 35s
07h 16m 25s

J2000

16h 17m 30s
+75° 45’ 19”

Galactic Coordinates

109.27°
35.33°

Finder Chart

Finder chart η Ursae Minoris (eta Ursae Minoris) star
Simplified finder chart for η Ursae Minoris (eta Ursae Minoris).

Magnitude, Color, Spectral Class

4.95
Main-sequence

2.58
F5V
7044K

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

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

Star System Properties

η 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 η Ursae Minoris double sysyem:

4.95
15.75
10.8
227 arcsec

Distance, Radial Speed, Proper Motion

η Ursae Minoris is distant 97.26 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

29.83
97.26
-10 km/s
-0.085 arcsec/y
0.252"/y

Alternative Designations

η Ursae Minoris
(eta Ursae Minoris)
21 Ursae Minoris
SAO8470
SAO8470
NN 3950 A

Visibility from Your Location

η Ursae Minoris (eta Ursae Minoris) is circumpolar and transits at 16:44 UTC (altitude: 65.8°)