57 Ursae Majoris

Altitude: 59.5° Azimuth: 262.7° Direction: West

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

57 Ursae Majoris visual magnitude is 5.31. Because of its reltive faintness, 57 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 57 Ursae Majoris:

Color of 57 Ursae Majoris ⬤

Magnitude of 57 Ursae Majoris 5.31

Class Main-sequence

VISIBILITY RIGHT NOW

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

Altitude: 59.5°
Azimuth: 262.7°
Direction: West

Celestial coordinates and finder chart of 57 Ursae Majoris

57 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 57 Ursae Majoris are provided in the following table:

Right Ascension J2000 11h 29m 04s

Declination J2000 +39° 20’ 12”

Galactic Longitude 172.23°

Galactic Latitude 68.97°

Constellation Ursa Major

The simplified sky map below shows the position of 57 Ursae Majoris in the sky:

Simplified finder chart for 57 Ursae Majoris.

Visibility of 57 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

57 Ursae Majoris is circumpolar and transits at 06:18 UTC (altitude: 77.9°)

Digitized Sky Survey image of 57 Ursae Majoris

The image below is a photograph of 57 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 57 Ursae Majoris is -0.05 arcsec per year in Right Ascension and 0.016 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 57 Ursae Majoris. The red arrow shows the motion of 57 Ursae Majoris during the next 10000 years (-8.33 arcmin in Right Ascension and 2.67 arcmin in declination);

Distance of 57 Ursae Majoris from the Sun and relative movement

57 Ursae Majoris is distant 209.11 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

Distance (parsec) 64.14 pc

Distance (light year) 209.11 ly

Heliocentric radial velocity -11 km/s

Proper Motion RA -0.05 arcsec/year

Proper Motion Dec 0.016 arcsec/year

Spectral properties of 57 Ursae Majoris

57 Ursae Majoris belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 1.27

Spectral Type A2V

Color Index (B-V) 0.01

Temperature of 57 Ursae Majoris 10002K

The red dot in the diagram below shows where 57 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 57 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

57 Ursae Majoris star system properties

57 Ursae Majoris is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 57 Ursae Majoris double sysyem:

Main star magnitude 5.31

Secondary star magnitude 7.81

Magnitude difference 2.5

Separation 346.3 arcsec

Alternative designations of 57 Ursae Majoris

Flamsteed designation 57 Ursae Majoris

Henry Draper Catalogue HD99787

SAO Catalogue SAO62572

Hipparcos Catalogue HIP56034

Durchmusterung Catalogue BD+40 2433

Aitken Double Star Catalogue ADS8175

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In Evidence

Other stars in Ursa Major