39 Boötis

Above the horizon. Circumpolar today

Alt: 11.77° Az: 14.34° Direction: North-North-East

39 Boötis is a double main-sequence star of spectral class F6 in the constellation of Boötes.

39 Boötis visual magnitude is 5.69. Because of its faintness, 39 Boötis is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 39 Boötis. The red arrow shows the motion of 39 Boötis during the next 1000 years (-1.27 arcmin in Right Ascension and 1.60 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 14h 50m 32s

Declination +48° 37’ 05”

Hour Angle 13h 26m 05s

Sidereal Time 04h 16m 37s

J2000

Right Ascension 14h 49m 41s

Declination +48° 43’ 14”

Galactic Coordinates

Galactic Longitude 84.29°

Galactic Latitude 58.58°

Finder Chart

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Finder chart for 39 Boötis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.69

Class Main-sequence

Absolute magnitude 1.45

Spectral Type F6V

Color Index (B-V) 0.47

Temperature 6528K

The red dot in the diagram below shows where 39 Boötis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 39 Boötis. Attribution: Richard Powell / CC BY-SA

Star System Properties

39 Boötis is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 39 Boötis double sysyem:

Main star magnitude 5.69

Secondary star magnitude 6.19

Magnitude difference 0.5

Separation 2.9 arcsec

Distance, Radial Speed, Proper Motion

39 Boötis is distant 229.25 light years from the Sun and it is moving towards the Sun at the speed of 32 kilometers per second.

Distance (parsec) 70.32

Distance (light year) 229.25

Radial Speed -32 km/s

Proper Motion RA -0.076 arcsec/y

Proper Motion Dec 0.096"/y

Alternative Designations

Flamsteed designation 39 Boötis

Henry Draper Catalogue HD131041

SAO Catalogue SAO45231

Hipparcos Catalogue HIP72524

Durchmusterung Catalogue BD+49 2326

Aitken Double Star Catalogue ADS9406

Visibility from Your Location

39 Boötis is circumpolar and transits at 09:43 UTC (altitude: 87.1°)

Set Location

Other stars in Boötes