σ Leonis (sigma Leonis)

Above the horizon. Rise: 4:40 | Tran: 11:08 | Set: 17:36

Alt: 12.61° Az: 263.56° Direction: West

σ Leonis is a main-sequence star of spectral class B9 in the constellation of Leo.

σ Leonis visual magnitude is 4.05. Because of its moderate brightness, σ Leonis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of σ Leonis. The red arrow shows the motion of σ Leonis during the next 1000 years (-1.53 arcmin in Right Ascension and -0.20 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 22m 24s

Declination +05° 53’ 36”

Hour Angle 05h 08m 30s

Sideral Time 16h 30m 55s

J2000

Right Ascension 11h 21m 08s

Declination +06° 01’ 45”

Galactic Coordinates

Galactic Longitude 253.36°

Galactic Latitude 59.9°

Finder Chart

Simplified finder chart for σ Leonis (sigma Leonis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.05

Class Main-sequence

Absolute magnitude -0.04

Spectral Type B9V

Color Index (B-V) -0.06

Temperature 10941K

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

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

Distance, Radial Speed, Proper Motion

σ Leonis is distant 213.91 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

Distance (parsec) 65.62

Distance (light year) 213.91

Radial Speed -5 km/s

Proper Motion RA -0.092 arcsec/y

Proper Motion Dec -0.012"/y

Alternative Designations

Bayer designation σ Leonis
(sigma Leonis)

Flamsteed designation 77 Leonis

Henry Draper Catalogue HD98664

SAO Catalogue SAO118804

Hipparcos Catalogue HIP55434

Durchmusterung Catalogue BD+06 2437

FK5 Catalogue 427

Visibility from Your Location

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

Azimuth: 84.1° RISE 4:40

Max altitude: 44.4° TRANSIT 11:08

Azimuth: 275.9° SET 17:36

Set Location

Other stars in Leo