ο Librae (omicron Librae)
ο Librae is a double hypergiant star in the constellation of Libra.
ο Librae visual magnitude is 6.3. Because of its reltive faintness, ο 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 ο Librae:
Celestial coordinates and finder chart of ο Librae
ο 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 ο Librae are provided in the following table:
The simplified sky map below shows the position of ο Librae in the sky:
Visibility of ο Librae from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's ο Librae (omicron Librae) rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of ο Librae
The image below is a photograph of ο 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 ο Librae is 0.024 arcsec per year in Right Ascension and 0.026 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of ο Librae from the Sun and relative movement
ο Librae is distant 178.04 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.
Spectral properties of ο Librae
ο Librae belongs to spectral class F0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where ο Librae is situated in the Hertzsprung–Russell diagram.
ο Librae star system properties
ο Librae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the ο Librae double sysyem: