10 Leonis

Above the horizon. Rise: 4:11 | Tran: 10:43 | Set: 17:15

Alt: 10.94° Az: 267.05° Direction: West

10 Leonis is a variable giant star of spectral class K1 in the constellation of Leo.

10 Leonis visual magnitude is 5. Because of its moderate brightness, 10 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 10 Leonis. The red arrow shows the motion of 10 Leonis during the next 10000 years (-10.00 arcmin in Right Ascension and 0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 38m 30s

Declination +06° 43’ 25”

Hour Angle 05h 23m 26s

Sideral Time 15h 01m 57s

J2000

Right Ascension 09h 37m 12s

Declination +06° 50’ 08”

Galactic Coordinates

Galactic Longitude 227.52°

Galactic Latitude 39.73°

Finder Chart

Simplified finder chart for 10 Leonis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5

Class Giant

Absolute magnitude 0.80

Spectral Type K1III

Color Index (B-V) 1.05

Temperature 4626K

The red dot in the diagram below shows where 10 Leonis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 10 Leonis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

10 Leonis is distant 225.61 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

Distance (parsec) 69.20

Distance (light year) 225.61

Radial Speed 20 km/s

Proper Motion RA -0.06 arcsec/y

Proper Motion Dec 0.001"/y

Alternative Designations

Flamsteed designation 10 Leonis

Henry Draper Catalogue HD83240

SAO Catalogue SAO117807

Hipparcos Catalogue HIP47205

Durchmusterung Catalogue BD+07 2160

FK5 Catalogue 2767

General Catalogue of Variable Stars 4551

Visibility from Your Location

Today's 10 Leonis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 83.3° RISE 4:11

Max altitude: 45.2° TRANSIT 10:43

Azimuth: 276.7° SET 17:15

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Leo