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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
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All Constellations » Ursa Major » 

Muscida - ο Ursae Majoris (omicron Ursae Majoris)

Altitude: 63.6°   Azimuth: 308.2°   Direction: North-West

Muscida, also designated as ο Ursae Majoris (omicron Ursae Majoris), is a variable and multiple giant star in the constellation of Ursa Major.

Muscida visual magnitude is 3.36. Because of its moderate brightness, Muscida 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 Muscida:


Muscida - ο Ursae Majoris (omicron Ursae Majoris) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 63.6°
Azimuth: 308.2°
Direction: North-West

Celestial coordinates and finder chart of Muscida

Muscida 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 Muscida are provided in the following table:

08h 30m 15s
+60° 43’ 05”
Ursa Major

The simplified sky map below shows the position of Muscida in the sky:

Finder chart Muscida - ο Ursae Majoris (omicron Ursae Majoris) star
Simplified finder chart for Muscida - ο Ursae Majoris (omicron Ursae Majoris).

Visibility of Muscida from your location

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

Muscida - ο Ursae Majoris (omicron Ursae Majoris) is circumpolar and transits at 03:55 UTC (altitude: 80.8°)

Digitized Sky Survey image of Muscida

The image below is a photograph of Muscida 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 Muscida is -0.133 arcsec per year in Right Ascension and -0.107 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Muscida - ο Ursae Majoris (omicron Ursae Majoris) star
DSS2 image of Muscida. The red arrow shows the motion of Muscida during the next 1000 years (-2.22 arcmin in Right Ascension and -1.78 arcmin in declination);

Distance of Muscida from the Sun and relative movement

Muscida is distant 183.56 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

56.31 pc
183.56 ly
20 km/s
-0.133 arcsec/year
-0.107 arcsec/year

Spectral properties of Muscida

Muscida belongs to spectral class G5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where Muscida is situated in the Hertzsprung–Russell diagram.

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

Muscida star system properties

Muscida 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 Muscida double sysyem:

143 arcsec

Alternative designations of Muscida

ο Ursae Majoris
(omicron Ursae Majoris)
1 Ursae Majoris