Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

μ Librae (mu Librae)

μ Librae is a variable and multiple star in the constellation of Libra.

μ Librae visual magnitude is 5.31. Because of its reltive faintness, μ Librae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about μ Librae:

5.31
μ Librae (mu Librae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 9°.

Celestial coordinates and finder chart of μ Librae

μ Librae is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of μ Librae are provided in the following table:

14h 49m 19s
-14° 08’ 56”
341.3°
39.78°
Libra

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

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

Visibility of μ Librae from your location

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

Today's μ Librae (mu Librae) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 104.1°
Max altitude: 24.4°
Azimuth: 255.9°
μ Librae (mu Librae) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of μ Librae

The image below is a photograph of μ Librae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of μ Librae is -0.061 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of μ Librae (mu Librae) star
DSS2 image of μ Librae. The red arrow shows the motion of μ Librae during the next 10000 years (-10.17 arcmin in Right Ascension and -2.33 arcmin in declination);

Distance of μ Librae from the Sun and relative movement

μ Librae is distant 235.21 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

72.15 pc
235.21 ly
-4 km/s
-0.061 arcsec/year
-0.014 arcsec/year

Spectral properties of μ Librae

μ Librae belongs to spectral class A1 μ Librae is also a SrCrEu chemically peculiar star.

1.02
A1
9328K

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

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

μ Librae star system properties

μ Librae 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 Librae double sysyem:

5.31
6.21
0.9
1.8 arcsec

Alternative designations of μ Librae

μ Librae
(mu Librae)
SAO158821
SAO158821