μ Draconis (mu Draconis)

Above the horizon. Circumpolar today

Alt: 17.85° Az: 14.62° Direction: North-North-East

μ Draconis is a multiple main-sequence star of spectral class F7 in the constellation of Draco.

μ Draconis visual magnitude is 5.83. Because of its faintness, μ Draconis 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 μ Draconis. The red arrow shows the motion of μ Draconis during the next 10000 years (-12.17 arcmin in Right Ascension and 14.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 05m 51s

Declination +54° 26’ 13”

Hour Angle 13h 37m 34s

Sidereal Time 06h 43m 26s

J2000

Right Ascension 17h 05m 19s

Declination +54° 28’ 13”

Galactic Coordinates

Galactic Longitude 82.3°

Galactic Latitude 37.02°

Finder Chart

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Finder chart for μ Draconis (mu Draconis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.83

Class Main-sequence

Absolute magnitude 3.68

Spectral Type F7V

Color Index (B-V)

Temperature 10125K

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

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

Star System Properties

μ Draconis 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 μ Draconis double sysyem:

Main star magnitude 5.83

Secondary star magnitude 5.93

Magnitude difference 0.1

Separation 2 arcsec

Distance, Radial Speed, Proper Motion

μ Draconis is distant 87.92 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

Distance (parsec) 26.97

Distance (light year) 87.92

Radial Speed -18 km/s

Proper Motion RA -0.073 arcsec/y

Proper Motion Dec 0.085"/y

Alternative Designations

Bayer designation μ Draconis
(mu Draconis)

Flamsteed designation 21 Draconis

Henry Draper Catalogue HD154905

SAO Catalogue SAO30239

Hipparcos Catalogue HIP83608

Durchmusterung Catalogue BD+54 1857

Gliese Catalogue Wo 9584 B

Aitken Double Star Catalogue ADS10345

Visibility from Your Location

μ Draconis (mu Draconis) is circumpolar and transits at 01:29 UTC (altitude: 87.0°)

Set Location

Other stars in Draco