Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Chertan - θ Leonis (theta Leonis)

Chertan, also designated as θ Leonis (theta Leonis), is a variable main-sequence star in the constellation of Leo.

Chertan visual magnitude is 3.34. Because of its moderate brightness, Chertan should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about Chertan:

3.34
Main-sequence
Chertan - θ Leonis (theta Leonis) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 39°.

Celestial coordinates and finder chart of Chertan

Chertan 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 Chertan are provided in the following table:

11h 14m 14s
+15° 25’ 45”
235.37°
64.59°
Leo

The simplified sky map below shows the position of Chertan in the sky:

Finder chart Chertan - θ Leonis (theta Leonis) star
Simplified finder chart for Chertan - θ Leonis (theta Leonis).

Visibility of Chertan from your location

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

Today's Chertan - θ Leonis (theta Leonis) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 74.6°
Max altitude: 53.9°
Azimuth: 285.4°
Chertan - θ Leonis (theta Leonis) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Chertan

The image below is a photograph of Chertan 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 Chertan is -0.061 arcsec per year in Right Ascension and -0.079 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Chertan - θ Leonis (theta Leonis) star
DSS2 image of Chertan. The red arrow shows the motion of Chertan during the next 10000 years (-10.17 arcmin in Right Ascension and -13.17 arcmin in declination);

Distance of Chertan from the Sun and relative movement

Chertan is distant 177.56 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

54.47 pc
177.56 ly
8 km/s
-0.061 arcsec/year
-0.079 arcsec/year

Spectral properties of Chertan

Chertan belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

-0.34
A2V
10252K

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

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

Alternative designations of Chertan

Chertan
θ Leonis
(theta Leonis)
SAO99512
SAO99512