Nekkar - β Boötis (beta Boötis)

Above the horizon. Circumpolar today

Alt: 75.08° Az: 132.97° Direction: South-East

Nekkar, also designated as β Boötis (beta Boötis), is a variable giant star of spectral class G8 in the constellation of Boötes.

Nekkar visual magnitude is 3.5. Because of its moderate brightness, Nekkar is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of Nekkar - β Boötis (beta Boötis) star

DSS2 image of Nekkar. The red arrow shows the motion of Nekkar during the next 10000 years (-6.83 arcmin in Right Ascension and -4.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 02m 52s

Declination +40° 17’ 38”

Hour Angle 23h 02m 47s

Sideral Time 14h 05m 40s

J2000

Right Ascension 15h 01m 56s

Declination +40° 23’ 26”

Galactic Coordinates

Galactic Longitude 67.62°

Galactic Latitude 60.04°

Finder Chart

Simplified finder chart for Nekkar - β Boötis (beta Boötis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.5

Class Giant

Absolute magnitude -0.63

Spectral Type G8III

Color Index (B-V) 0.97

Temperature 4816K

The red dot in the diagram below shows where Nekkar is situated in the Hertzsprung–Russell diagram.

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

Distance, Radial Speed, Proper Motion

Nekkar is distant 218.65 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

Distance (parsec) 67.07

Distance (light year) 218.65

Radial Speed -20 km/s

Proper Motion RA -0.041 arcsec/y

Proper Motion Dec -0.028"/y

Alternative Designations

Proper Name Nekkar

Bayer designation β Boötis
(beta Boötis)

Flamsteed designation 42 Boötis

Henry Draper Catalogue HD133208

SAO Catalogue SAO45337

Hipparcos Catalogue HIP73555

Durchmusterung Catalogue BD+40 2840

FK5 Catalogue 555

General Catalogue of Variable Stars 6898

Visibility from Your Location

Nekkar - β Boötis (beta Boötis) is circumpolar and transits at 13:36 UTC (altitude: 78.8°)

Set Location

Other stars in Boötes