γ Lupi (gamma Lupi)

Below the horizon. Never rises today

Alt: -3.10° Az: 187.19° Direction: South

γ Lupi is a double sub-giant star of spectral class B2 in the constellation of Lupus.

γ Lupi visual magnitude is 2.78. Because of its brightness, γ Lupi is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

DSS2 image of γ Lupi. The red arrow shows the motion of γ Lupi during the next 10000 years (-2.50 arcmin in Right Ascension and -4.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 36m 48s

Declination -41° 14’ 52”

Hour Angle 00h 38m 14s

Sideral Time 16h 15m 03s

J2000

Right Ascension 15h 35m 08s

Declination -41° 10’ 00”

Galactic Coordinates

Galactic Longitude 333.19°

Galactic Latitude 11.89°

Finder Chart

Simplified finder chart for γ Lupi (gamma Lupi).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 2.78

Class Sub-giant

Absolute magnitude -3.42

Spectral Type B2IV

Color Index (B-V) -0.2

Temperature 13585K

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

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

Star System Properties

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

Main star magnitude 2.78

Secondary star magnitude 2.88

Magnitude difference 0.1

Separation 0.6 arcsec

Distance, Radial Speed, Proper Motion

γ Lupi is distant 566.96 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 173.91

Distance (light year) 566.96

Radial Speed 2 km/s

Proper Motion RA -0.015 arcsec/y

Proper Motion Dec -0.028"/y

Alternative Designations

Bayer designation γ Lupi
(gamma Lupi)

Henry Draper Catalogue HD138690

SAO Catalogue SAO225938

Hipparcos Catalogue HIP76297

Durchmusterung Catalogue CD-40 9760

Visibility from Your Location

γ Lupi (gamma Lupi) is currently not visible from Greenwich, UK

Set Location

Other stars in Lupus