ω Leonis (omega Leonis)

Below the horizon. Rise: 9:42 | Tran: 16:25 | Set: 23:08

Alt: -1.10° Az: 285.89° Direction: South

ω Leonis is a double main-sequence star of spectral class F9 in the constellation of Leo.

ω Leonis visual magnitude is 5.41. Because of its faintness, ω Leonis is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of ω Leonis. The red arrow shows the motion of ω Leonis during the next 10000 years (9.17 arcmin in Right Ascension and -0.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 29m 49s

Declination +08° 56’ 40”

Hour Angle 06h 52m 56s

Sidereal Time 16h 22m 45s

J2000

Right Ascension 09h 28m 27s

Declination +09° 03’ 24”

Galactic Coordinates

Galactic Longitude 223.66°

Galactic Latitude 38.9°

Finder Chart

Loading map...

Finder chart for ω Leonis (omega Leonis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.41

Class Main-sequence

Absolute magnitude 2.73

Spectral Type F9V

Color Index (B-V) 0.6

Temperature 5968K

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

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

Star System Properties

ω Leonis 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 Leonis double sysyem:

Main star magnitude 5.41

Secondary star magnitude 6.11

Magnitude difference 0.7

Separation 0.5 arcsec

Distance, Radial Speed, Proper Motion

ω Leonis is distant 112.22 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

Distance (parsec) 34.42

Distance (light year) 112.22

Radial Speed -6 km/s

Proper Motion RA 0.055 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Bayer designation ω Leonis
(omega Leonis)

Flamsteed designation 2 Leonis

Henry Draper Catalogue HD81858

SAO Catalogue SAO117717

Hipparcos Catalogue HIP46454

Durchmusterung Catalogue BD+09 2188

Aitken Double Star Catalogue ADS7390

Visibility from Your Location

Today's ω Leonis (omega Leonis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 81.1° RISE 9:42

Max altitude: 47.5° TRANSIT 16:25

Azimuth: 278.9° SET 23:08

Set Location

Other stars in Leo