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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Ursa Major » 

55 Ursae Majoris

Altitude: 75.5°   Azimuth: 152.9°   Direction: South-South-East

55 Ursae Majoris is a main-sequence star in the constellation of Ursa Major.

55 Ursae Majoris visual magnitude is 4.78. Because of its moderate brightness, 55 Ursae Majoris 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 55 Ursae Majoris:


55 Ursae Majoris is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 75.5°
Azimuth: 152.9°
Direction: South-South-East

Celestial coordinates and finder chart of 55 Ursae Majoris

55 Ursae Majoris is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 55 Ursae Majoris are provided in the following table:

11h 19m 07s
+38° 11’ 08”
Ursa Major

The simplified sky map below shows the position of 55 Ursae Majoris in the sky:

Finder chart 55 Ursae Majoris star
Simplified finder chart for 55 Ursae Majoris.

Visibility of 55 Ursae Majoris from your location

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

Today's 55 Ursae Majoris rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.8°
Max altitude: 76.7°
Azimuth: 308.2°

Digitized Sky Survey image of 55 Ursae Majoris

The image below is a photograph of 55 Ursae Majoris 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 55 Ursae Majoris is -0.057 arcsec per year in Right Ascension and -0.068 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 55 Ursae Majoris star
DSS2 image of 55 Ursae Majoris. The red arrow shows the motion of 55 Ursae Majoris during the next 10000 years (-9.50 arcmin in Right Ascension and -11.33 arcmin in declination);

Distance of 55 Ursae Majoris from the Sun and relative movement

55 Ursae Majoris is distant 182.94 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

56.12 pc
182.94 ly
-3 km/s
-0.057 arcsec/year
-0.068 arcsec/year

Spectral properties of 55 Ursae Majoris

55 Ursae Majoris belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 55 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 55 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 55 Ursae Majoris

55 Ursae Majoris