Your Guide to the Solar System and the Night Sky
Donate now! You'll help cover server costs, enhance the site and keep it ad-free.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:49  
clear_day Transit: 12:56  
SunsetSet: 21:04 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Leo » 

ψ Leonis (psi Leonis)

ψ Leonis is a variable and double giant star in the constellation of Leo.

ψ Leonis visual magnitude is 5.35. Because of its reltive faintness, ψ Leonis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about ψ Leonis:

ψ Leonis (psi Leonis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of ψ Leonis

ψ Leonis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ψ Leonis are provided in the following table:

09h 43m 43s
+14° 01’ 18”

The simplified sky map below shows the position of ψ Leonis in the sky:

Finder chart ψ Leonis (psi Leonis) star
Simplified finder chart for ψ Leonis (psi Leonis).

Visibility of ψ Leonis from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's ψ Leonis (psi Leonis) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 76.0°
Max altitude: 52.5°
Azimuth: 284.0°
ψ Leonis (psi Leonis) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of ψ Leonis

The image below is a photograph of ψ Leonis from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of ψ Leonis is 0.004 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of ψ Leonis (psi Leonis) star
DSS2 image of ψ Leonis. The red arrow shows the motion of ψ Leonis during the next 100000 years (6.67 arcmin in Right Ascension and -5.00 arcmin in declination);

Distance of ψ Leonis from the Sun and relative movement

ψ Leonis is distant 713.35 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

218.82 pc
713.35 ly
8 km/s
0.004 arcsec/year
-0.003 arcsec/year

Spectral properties of ψ Leonis

ψ Leonis belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.


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

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

ψ Leonis star system properties

ψ Leonis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the ψ Leonis double sysyem:

281.8 arcsec

Alternative designations of ψ Leonis

ψ Leonis
(psi Leonis)