ω Lupi (omega Lupi)

ω Lupi is a double giant star in the constellation of Lupus.

ω Lupi visual magnitude is 4.33. Because of its moderate brightness, ω Lupi should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about ω Lupi:

Color of ω Lupi ⬤

Magnitude of ω Lupi 4.33

Class Giant

VISIBILITY RIGHT NOW ω Lupi (omega Lupi) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of ω Lupi

ω Lupi is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ω Lupi are provided in the following table:

Right Ascension J2000 15h 38m 03s

Declination J2000 -42° 34’ 03”

Galactic Longitude 332.78°

Galactic Latitude 10.44°

Constellation Lupus

The simplified sky map below shows the position of ω Lupi in the sky:

Simplified finder chart for ω Lupi (omega Lupi).

Visibility of ω Lupi from your location

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

ω Lupi (omega Lupi) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of ω Lupi

The image below is a photograph of ω Lupi 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 ω Lupi is -0.153 arcsec per year in Right Ascension and 0.057 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of ω Lupi. The red arrow shows the motion of ω Lupi during the next 1000 years (-2.55 arcmin in Right Ascension and 0.95 arcmin in declination);

Distance of ω Lupi from the Sun and relative movement

ω Lupi is distant 229.74 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 70.47 pc

Distance (light year) 229.74 ly

Heliocentric radial velocity -7 km/s

Proper Motion RA -0.153 arcsec/year

Proper Motion Dec 0.057 arcsec/year

Spectral properties of ω Lupi

ω Lupi belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.09

Spectral Type K4III

Color Index (B-V) 1.42

Temperature of ω Lupi 3918K

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

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

ω Lupi star system properties

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

Main star magnitude 4.33

Secondary star magnitude 11.03

Magnitude difference 6.7

Separation 11.8 arcsec

Alternative designations of ω Lupi

Bayer designation ω Lupi
(omega Lupi)

Henry Draper Catalogue HD139127

SAO Catalogue SAO226004

Hipparcos Catalogue HIP76552

Durchmusterung Catalogue CD-4210601

FK5 Catalogue 3232

In Evidence

Other stars in Lupus