Alrakis - μ Draconis (mu Draconis)

Above the horizon. Circumpolar today

Alt: 37.22° Az: 313.32° Direction: North-West

Alrakis, also designated as μ Draconis (mu Draconis), is a multiple main-sequence star of spectral class F7 in the constellation of Draco.

Alrakis visual magnitude is 5.8. Because of its faintness, Alrakis 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.

Image of Alrakis - μ Draconis (mu Draconis) star

DSS2 image of Alrakis. The red arrow shows the motion of Alrakis 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 06h 20m 00s

Sidereal Time 23h 25m 52s

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 Alrakis - μ Draconis (mu Draconis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.8

Class Main-sequence

Absolute magnitude 3.97

Spectral Type F7V

Color Index (B-V) 0.48

Temperature 6481K

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

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

Star System Properties

Alrakis 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 Alrakis double sysyem:

Main star magnitude 5.8

Secondary star magnitude 5.9

Magnitude difference 0.1

Separation 2 arcsec

Distance, Radial Speed, Proper Motion

Alrakis is distant 75.81 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 23.26

Distance (light year) 75.81

Radial Speed -15 km/s

Proper Motion RA -0.073 arcsec/y

Proper Motion Dec 0.085"/y

Alternative Designations

Proper Name Alrakis

Bayer designation μ Draconis
(mu Draconis)

Flamsteed designation 21 Draconis

Henry Draper Catalogue HD154906

SAO Catalogue SAO30239

Durchmusterung Catalogue BD+54 1857

Gliese Catalogue Wo 9584 A

Aitken Double Star Catalogue ADS10345

Visibility from Your Location

Alrakis - μ Draconis (mu Draconis) is circumpolar and transits at 01:06 UTC (altitude: 87.0°)

Set Location

Other stars in Draco