83 Ursae Majoris

83 Ursae Majoris is a variable giant star in the constellation of Ursa Major.

83 Ursae Majoris visual magnitude is 4.66. Because of its moderate brightness, 83 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 83 Ursae Majoris:

Color of 83 Ursae Majoris ⬤

Magnitude of 83 Ursae Majoris 4.66

Class Giant

VISIBILITY RIGHT NOW 83 Ursae Majoris is above the horizon from Greenwich, United Kingdom [change]. Altitude: 25°.

Celestial coordinates and finder chart of 83 Ursae Majoris

83 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 83 Ursae Majoris are provided in the following table:

Right Ascension J2000 13h 40m 44s

Declination J2000 +54° 40’ 54”

Galactic Longitude 108.18°

Galactic Latitude 61.01°

Constellation Ursa Major

The simplified sky map below shows the position of 83 Ursae Majoris in the sky:

Simplified finder chart for 83 Ursae Majoris.

Visibility of 83 Ursae Majoris from your location

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

83 Ursae Majoris is circumpolar and transits at 01:00 UTC (altitude: 86.8°)

Digitized Sky Survey image of 83 Ursae Majoris

The image below is a photograph of 83 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 83 Ursae Majoris is -0.022 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 83 Ursae Majoris. The red arrow shows the motion of 83 Ursae Majoris during the next 10000 years (-3.67 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of 83 Ursae Majoris from the Sun and relative movement

83 Ursae Majoris is distant 548.82 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

Distance (parsec) 168.35 pc

Distance (light year) 548.82 ly

Heliocentric radial velocity -17 km/s

Proper Motion RA -0.022 arcsec/year

Proper Motion Dec -0.009 arcsec/year

Spectral properties of 83 Ursae Majoris

83 Ursae Majoris belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.47

Spectral Type M2III

Color Index (B-V) 1.64

Temperature of 83 Ursae Majoris 3594K

The red dot in the diagram below shows where 83 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 83 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 83 Ursae Majoris

Flamsteed designation 83 Ursae Majoris

Henry Draper Catalogue HD119228

SAO Catalogue SAO28843

Hipparcos Catalogue HIP66738

Durchmusterung Catalogue BD+55 1625

FK5 Catalogue 3087

General Catalogue of Variable Stars 6389

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In Evidence

Other stars in Ursa Major