17 Ursae Majoris

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

17 Ursae Majoris visual magnitude is 5.27. Because of its reltive faintness, 17 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 17 Ursae Majoris:

Color of 17 Ursae Majoris ⬤

Magnitude of 17 Ursae Majoris 5.27

Class Giant

VISIBILITY RIGHT NOW 17 Ursae Majoris is above the horizon from Greenwich, United Kingdom [change]. Altitude: 61°.

Celestial coordinates and finder chart of 17 Ursae Majoris

17 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 17 Ursae Majoris are provided in the following table:

Right Ascension J2000 09h 15m 49s

Declination J2000 +56° 44’ 29”

Galactic Longitude 159.52°

Galactic Latitude 41.98°

Constellation Ursa Major

The simplified sky map below shows the position of 17 Ursae Majoris in the sky:

Simplified finder chart for 17 Ursae Majoris.

Visibility of 17 Ursae Majoris from your location

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

17 Ursae Majoris is circumpolar and transits at 21:19 UTC (altitude: 84.7°)

Digitized Sky Survey image of 17 Ursae Majoris

The image below is a photograph of 17 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 17 Ursae Majoris is -0.016 arcsec per year in Right Ascension and -0.031 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 17 Ursae Majoris. The red arrow shows the motion of 17 Ursae Majoris during the next 10000 years (-2.67 arcmin in Right Ascension and -5.17 arcmin in declination);

Distance of 17 Ursae Majoris from the Sun and relative movement

17 Ursae Majoris is distant 680.58 light years from the Sun and it is moving towards the Sun at the speed of 30 kilometers per second.

Distance (parsec) 208.77 pc

Distance (light year) 680.58 ly

Heliocentric radial velocity -30 km/s

Proper Motion RA -0.016 arcsec/year

Proper Motion Dec -0.031 arcsec/year

Spectral properties of 17 Ursae Majoris

17 Ursae Majoris belongs to spectral class K5 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.33

Spectral Type K5III

Color Index (B-V) 1.56

Temperature of 17 Ursae Majoris 3705K

The red dot in the diagram below shows where 17 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 17 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 17 Ursae Majoris

Flamsteed designation 17 Ursae Majoris

Henry Draper Catalogue HD79354

SAO Catalogue SAO27185

Hipparcos Catalogue HIP45455

Durchmusterung Catalogue BD+57 1211

General Catalogue of Variable Stars 4427

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In Evidence

Other stars in Ursa Major