We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Help keep this site free and ads-free! Donate Now!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:51  
clear_day Transit: 12:57  
SunsetSet: 20:04
sunny DaytimeWhat's Visible Now?
All Constellations » Boötes » 

11 Boötis

Altitude: 18.1°   Azimuth: 68.5°   Direction: East-North-East

11 Boötis is a giant star in the constellation of Boötes.

11 Boötis visual magnitude is 6.23. Because of its reltive faintness, 11 Boötis should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 11 Boötis is -0.08 arcsec per year in Right Ascension and 0.017 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 11 Boötis star
DSS2 image of 11 Boötis. The red arrow shows the motion of 11 Boötis during the next 10000 years (-13.33 arcmin in Right Ascension and 2.83 arcmin in declination);

Key facts about 11 Boötis


11 Boötis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 18.1°
Azimuth: 68.5°
Direction: East-North-East

Celestial coordinates and finder chart of 11 Boötis

11 Boötis is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 11 Boötis are provided in the following table:

14h 01m 10s
+27° 23’ 12”

The simplified sky map below shows the position of 11 Boötis in the sky:

Finder chart 11 Boötis star
Simplified finder chart for 11 Boötis.

Visibility of 11 Boötis 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 11 Boötis 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: 62.6°
Max altitude: 65.9°
Azimuth: 297.4°

Distance of 11 Boötis from the Sun and relative movement

11 Boötis is distant 339.94 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

104.28 pc
339.94 ly
-24 km/s
-0.08 arcsec/year
0.017 arcsec/year

Spectral properties of 11 Boötis

11 Boötis belongs to spectral class A7 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 11 Boötis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 11 Boötis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 11 Boötis