Rasalas - μ Leonis (mu Leonis)

Below the horizon. Rise: 10:43 | Tran: 19:11 | Set: 3:42

Alt: -10.73° Az: 17.90° Direction: North-North-East

Rasalas, also designated as μ Leonis (mu Leonis), is a giant star of spectral class K2 in the constellation of Leo.

Rasalas visual magnitude is 3.88. Because of its moderate brightness, Rasalas 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.

Image of Rasalas - μ Leonis (mu Leonis) star

DSS2 image of Rasalas. The red arrow shows the motion of Rasalas during the next 1000 years (-3.60 arcmin in Right Ascension and -0.93 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 54m 12s

Declination +25° 53’ 11”

Hour Angle 13h 18m 26s

Sidereal Time 23h 12m 38s

J2000

Right Ascension 09h 52m 45s

Declination +26° 00’ 24”

Galactic Coordinates

Galactic Longitude 204.05°

Galactic Latitude 50.25°

Finder Chart

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Finder chart for Rasalas - μ Leonis (mu Leonis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.88

Class Giant

Absolute magnitude 0.83

Spectral Type K2III

Color Index (B-V) 1.22

Temperature 4270K

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

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

Distance, Radial Speed, Proper Motion

Rasalas is distant 132.95 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

Distance (parsec) 40.78

Distance (light year) 132.95

Radial Speed 14 km/s

Proper Motion RA -0.216 arcsec/y

Proper Motion Dec -0.056"/y

Alternative Designations

Proper Name Rasalas

Bayer designation μ Leonis
(mu Leonis)

Flamsteed designation 24 Leonis

Henry Draper Catalogue HD85503

SAO Catalogue SAO81064

Hipparcos Catalogue HIP48455

Durchmusterung Catalogue BD+26 2019

FK5 Catalogue 371

Visibility from Your Location

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

Azimuth: 64.1° RISE 10:43

Max altitude: 64.4° TRANSIT 19:11

Azimuth: 295.9° SET 3:42

Set Location

Other stars in Leo