84 Ursae Majoris

Altitude: 42.0° Azimuth: 308.7° Direction: North-West

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

84 Ursae Majoris visual magnitude is 5.7. Because of its reltive faintness, 84 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 84 Ursae Majoris:

Color of 84 Ursae Majoris ⬤

Magnitude of 84 Ursae Majoris 5.7

Class

VISIBILITY RIGHT NOW

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

Altitude: 42.0°
Azimuth: 308.7°
Direction: North-West

Celestial coordinates and finder chart of 84 Ursae Majoris

84 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 84 Ursae Majoris are provided in the following table:

Right Ascension J2000 13h 46m 35s

Declination J2000 +54° 25’ 58”

Galactic Longitude 106.38°

Galactic Latitude 60.89°

Constellation Ursa Major

The simplified sky map below shows the position of 84 Ursae Majoris in the sky:

Simplified finder chart for 84 Ursae Majoris.

Visibility of 84 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

84 Ursae Majoris is circumpolar and transits at 13:30 UTC (altitude: 87.0°)

Digitized Sky Survey image of 84 Ursae Majoris

The image below is a photograph of 84 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 84 Ursae Majoris is -0.019 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 84 Ursae Majoris. The red arrow shows the motion of 84 Ursae Majoris during the next 10000 years (-3.17 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of 84 Ursae Majoris from the Sun and relative movement

84 Ursae Majoris is distant 281.52 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

Distance (parsec) 86.36 pc

Distance (light year) 281.52 ly

Heliocentric radial velocity -2 km/s

Proper Motion RA -0.019 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of 84 Ursae Majoris

84 Ursae Majoris belongs to spectral class B9 84 Ursae Majoris is also a EuCr chemically peculiar star.

Absolute magnitude 1.02

Spectral Type B9

Color Index (B-V) -0.08

Temperature of 84 Ursae Majoris 11247K

The red dot in the diagram below shows where 84 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 84 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 84 Ursae Majoris

Flamsteed designation 84 Ursae Majoris

Henry Draper Catalogue HD120198

SAO Catalogue SAO28885

Hipparcos Catalogue HIP67231

Durchmusterung Catalogue BD+55 1634

General Catalogue of Variable Stars CR UMa

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In Evidence

Other stars in Ursa Major