μ Lupi (mu Lupi)

Below the horizon. Never rises today

Alt: -10.22° Az: 189.79° Direction: South

μ Lupi is a multiple main-sequence star of spectral class B8 in the constellation of Lupus.

μ Lupi visual magnitude is 4.27. Because of its moderate brightness, μ Lupi is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of μ Lupi. The red arrow shows the motion of μ Lupi during the next 10000 years (-4.33 arcmin in Right Ascension and -6.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 20m 18s

Declination -47° 57’ 57”

Hour Angle 00h 57m 54s

Sidereal Time 16h 18m 12s

J2000

Right Ascension 15h 18m 32s

Declination -47° 52’ 29”

Galactic Coordinates

Galactic Longitude 326.86°

Galactic Latitude 8.05°

Finder Chart

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Finder chart for μ Lupi (mu Lupi).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.27

Class Main-sequence

Absolute magnitude -0.48

Spectral Type B8V

Color Index (B-V) -0.08

Temperature 11247K

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

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

Star System Properties

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

Main star magnitude 4.27

Secondary star magnitude 4.37

Magnitude difference 0.1

Separation 1.3 arcsec

Distance, Radial Speed, Proper Motion

μ Lupi is distant 290.55 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

Distance (parsec) 89.13

Distance (light year) 290.55

Radial Speed 15 km/s

Proper Motion RA -0.026 arcsec/y

Proper Motion Dec -0.038"/y

Alternative Designations

Bayer designation μ Lupi
(mu Lupi)

Henry Draper Catalogue HD135734

SAO Catalogue SAO225638

Hipparcos Catalogue HIP74911

Durchmusterung Catalogue CD-47 9860

Visibility from Your Location

μ Lupi (mu Lupi) is currently not visible from Greenwich, UK

Set Location

Other stars in Lupus