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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: 7:45  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
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All Constellations » Ursa Major » 

Tania Borealis - λ Ursae Majoris (lambda Ursae Majoris)

Altitude: 41.9°   Azimuth: 70.0°   Direction: East-North-East

Tania Borealis, also designated as λ Ursae Majoris (lambda Ursae Majoris), is a sub-giant star in the constellation of Ursa Major.

Tania Borealis visual magnitude is 3.45. Because of its moderate brightness, Tania Borealis 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 Tania Borealis:


Tania Borealis - λ Ursae Majoris (lambda Ursae Majoris) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 41.9°
Azimuth: 70.0°
Direction: East-North-East

Celestial coordinates and finder chart of Tania Borealis

Tania Borealis 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 Tania Borealis are provided in the following table:

10h 17m 05s
+42° 54’ 51”
Ursa Major

The simplified sky map below shows the position of Tania Borealis in the sky:

Finder chart Tania Borealis - λ Ursae Majoris (lambda Ursae Majoris) star
Simplified finder chart for Tania Borealis - λ Ursae Majoris (lambda Ursae Majoris).

Visibility of Tania Borealis from your location

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

Tania Borealis - λ Ursae Majoris (lambda Ursae Majoris) is circumpolar and transits at 05:25 UTC (altitude: 81.4°)

Digitized Sky Survey image of Tania Borealis

The image below is a photograph of Tania Borealis 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 Tania Borealis is -0.164 arcsec per year in Right Ascension and -0.038 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Tania Borealis - λ Ursae Majoris (lambda Ursae Majoris) star
DSS2 image of Tania Borealis. The red arrow shows the motion of Tania Borealis during the next 1000 years (-2.73 arcmin in Right Ascension and -0.63 arcmin in declination);

Distance of Tania Borealis from the Sun and relative movement

Tania Borealis is distant 134.32 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

41.20 pc
134.32 ly
18 km/s
-0.164 arcsec/year
-0.038 arcsec/year

Spectral properties of Tania Borealis

Tania Borealis belongs to spectral class A2 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Alternative designations of Tania Borealis

Tania Borealis
λ Ursae Majoris
(lambda Ursae Majoris)
33 Ursae Majoris