22 Ursae Majoris

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

22 Ursae Majoris visual magnitude is 5.72. Because of its reltive faintness, 22 Ursae Majoris should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 22 Ursae Majoris:

Color of 22 Ursae Majoris ⬤

Magnitude of 22 Ursae Majoris 5.72

Class Main-sequence

VISIBILITY RIGHT NOW 22 Ursae Majoris is above the horizon from Greenwich, United Kingdom [change]. Altitude: 34°.

Celestial coordinates and finder chart of 22 Ursae Majoris

22 Ursae Majoris 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 22 Ursae Majoris are provided in the following table:

Right Ascension J2000 09h 34m 53s

Declination J2000 +72° 12’ 20”

Galactic Longitude 139.93°

Galactic Latitude 37.74°

Constellation Ursa Major

The simplified sky map below shows the position of 22 Ursae Majoris in the sky:

Simplified finder chart for 22 Ursae Majoris.

Visibility of 22 Ursae Majoris from your location

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

22 Ursae Majoris is circumpolar and transits at 20:51 UTC (altitude: 69.3°)

Digitized Sky Survey image of 22 Ursae Majoris

The image below is a photograph of 22 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 22 Ursae Majoris is 0.075 arcsec per year in Right Ascension and -0.077 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 22 Ursae Majoris. The red arrow shows the motion of 22 Ursae Majoris during the next 10000 years (12.50 arcmin in Right Ascension and -12.83 arcmin in declination);

Distance of 22 Ursae Majoris from the Sun and relative movement

22 Ursae Majoris is distant 162.51 light years from the Sun and it is moving towards the Sun at the speed of 38 kilometers per second.

Distance (parsec) 49.85 pc

Distance (light year) 162.51 ly

Heliocentric radial velocity -38 km/s

Proper Motion RA 0.075 arcsec/year

Proper Motion Dec -0.077 arcsec/year

Spectral properties of 22 Ursae Majoris

22 Ursae Majoris belongs to spectral class F7 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 2.23

Spectral Type F7V

Color Index (B-V) 0.48

Temperature of 22 Ursae Majoris 6481K

The red dot in the diagram below shows where 22 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 22 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 22 Ursae Majoris

Flamsteed designation 22 Ursae Majoris

Henry Draper Catalogue HD82189

SAO Catalogue SAO6898

Hipparcos Catalogue HIP47013

Durchmusterung Catalogue BD+72 462

General Catalogue of Variable Stars Var

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In Evidence

Other stars in Ursa Major