We use cookies to deliver essential features and to measure their performance. Learn more.
Help us keep TheSkyLive 100% free & ads-free, donate now!
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:28 
Transit: 12:14 
Sunset: 17:00
sunny   (Daytime)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Leo » 

ρ Leonis (rho Leonis)

Below the horizon.  Rise: 18:35 | Tran: 1:24 | Set: 8:09
Alt: -7.80°   Az: 295.50°   Direction: West-North-West

ρ Leonis is a variable and double supergiant star of spectral class B1 in the constellation of Leo.

ρ Leonis visual magnitude is 3.85. Because of its moderate brightness, ρ 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.

Image of ρ Leonis (rho Leonis) star
DSS2 image of ρ Leonis. The red arrow shows the motion of ρ Leonis during the next 100000 years (-11.67 arcmin in Right Ascension and -5.00 arcmin in declination);

Celestial Coordinates

Apparent

10h 34m 07s
+09° 10’ 36”
07h 40m 14s
18h 14m 22s

J2000

10h 32m 48s
+09° 18’ 24”

Galactic Coordinates

234.89°
52.77°

Finder Chart

loader
  Loading map...
Finder chart for ρ Leonis (rho Leonis).

Magnitude, Color, Spectral Class

3.85
Supergiant

-7.37
B1I
12293K

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

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

Star System Properties

ρ 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 ρ Leonis double sysyem:

3.85
4.25
0.4
0 arcsec

Distance, Radial Speed, Proper Motion

ρ Leonis is distant 5,719.30 light years from the Sun and it is moving far from the Sun at the speed of 42 kilometers per second.

1,754.39
5,719.30
42 km/s
-0.007 arcsec/y
-0.003"/y

Alternative Designations

ρ Leonis
(rho Leonis)
SAO118355
SAO118355

Visibility from Your Location

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

Azimuth: 80.8°
Max altitude: 47.7°
Azimuth: 279.2°