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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
sleep NighttimeWhat's Visible Now?
All Constellations » Lyra » 

μ Lyrae (mu Lyrae)

Altitude: 18.8°   Azimuth: 49.4°   Direction: North-East

μ Lyrae is a sub-giant star in the constellation of Lyra.

μ Lyrae visual magnitude is 5.12. Because of its reltive faintness, μ Lyrae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of μ Lyrae is -0.023 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of μ Lyrae (mu Lyrae) star
DSS2 image of μ Lyrae. The red arrow shows the motion of μ Lyrae during the next 10000 years (-3.83 arcmin in Right Ascension and -0.33 arcmin in declination);

Key facts about μ Lyrae

5.12
Sub-giant

μ Lyrae (mu Lyrae) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 18.8°
Azimuth: 49.4°
Direction: North-East

Celestial coordinates and finder chart of μ Lyrae

μ Lyrae 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 μ Lyrae are provided in the following table:

18h 24m 13s
+39° 30’ 25”
67.33°
21.8°
Lyra

The simplified sky map below shows the position of μ Lyrae in the sky:

Finder chart μ Lyrae (mu Lyrae) star
Simplified finder chart for μ Lyrae (mu Lyrae).

Visibility of μ Lyrae from your location

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

μ Lyrae (mu Lyrae) is circumpolar and transits at 08:17 UTC (altitude: 78.0°)

Distance of μ Lyrae from the Sun and relative movement

μ Lyrae is distant 441.14 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

135.32 pc
441.14 ly
-24 km/s
-0.023 arcsec/year
-0.002 arcsec/year

Spectral properties of μ Lyrae

μ Lyrae belongs to spectral class A3 and has a luminosity class of IV corresponding to a sub-giant star.

-0.54
A3IV
9766K

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

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

Alternative designations of μ Lyrae

μ Lyrae
(mu Lyrae)
SAO66943
SAO66943