γ Lupi (gamma Lupi)

Below the horizon. Rise: 21:30 | Tran: 22:54 | Set: 0:17

Alt: -9.10° Az: 143.56° Direction: South-East

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 51s

Declination -41° 15’ 01”

Hour Angle 20h 34m 56s

Sidereal Time 12h 11m 47s

J2000

Right Ascension 15h 35m 08s

Declination -41° 10’ 00”

Galactic Coordinates

Galactic Longitude 333.19°

Galactic Latitude 11.89°

Finder Chart

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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

Today's γ Lupi (gamma Lupi) rise, transit and set times from Cenon-sur-Vienne, Francia are the following (all times relative to the local timezone Europe/Paris):

Azimuth: 131.3° RISE 21:30

Max altitude: 2.0° TRANSIT 22:54

Azimuth: 228.7° SET 0:17

Name:	Cenon-sur-Vienne, Francia
Latitude:	46° 46' 27.5" N
Longitude:	0° 32' 13.1" E
Timezone:	Europe/Paris

Set Location

Other stars in Lupus