3 Leonis is a double hypergiant star in the constellation of Leo.
3 Leonis visual magnitude is 5.71. Because of its reltive faintness, 3 Leonis 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 3 Leonis:
Celestial coordinates and finder chart of 3 Leonis
3 Leonis 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 3 Leonis are provided in the following table:
The simplified sky map below shows the position of 3 Leonis in the sky:
Visibility of 3 Leonis from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's 3 Leonis 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 3 Leonis
The image below is a photograph of 3 Leonis 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 3 Leonis is -0.027 arcsec per year in Right Ascension and -0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 3 Leonis from the Sun and relative movement
3 Leonis is distant 518.28 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.
Spectral properties of 3 Leonis
3 Leonis belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where 3 Leonis is situated in the Hertzsprung–Russell diagram.
3 Leonis star system properties
3 Leonis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 3 Leonis double sysyem: