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A Complete Guide to the Solar System and the Night Sky
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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 » 

12 Boötis

Altitude: 21.5°   Azimuth: 76.3°   Direction: East-North-East

12 Boötis is a sub-giant star in the constellation of Boötes.

12 Boötis visual magnitude is 4.83. Because of its moderate brightness, 12 Boötis should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of 12 Boötis is -0.022 arcsec per year in Right Ascension and -0.061 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 12 Boötis star
DSS2 image of 12 Boötis. The red arrow shows the motion of 12 Boötis during the next 10000 years (-3.67 arcmin in Right Ascension and -10.17 arcmin in declination);

Key facts about 12 Boötis


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

Altitude: 21.5°
Azimuth: 76.3°
Direction: East-North-East

Celestial coordinates and finder chart of 12 Boötis

12 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 12 Boötis are provided in the following table:

14h 10m 23s
+25° 05’ 30”

The simplified sky map below shows the position of 12 Boötis in the sky:

Finder chart 12 Boötis star
Simplified finder chart for 12 Boötis.

Visibility of 12 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 12 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: 64.9°
Max altitude: 63.6°
Azimuth: 295.1°

Distance of 12 Boötis from the Sun and relative movement

12 Boötis is distant 119.55 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

36.67 pc
119.55 ly
11 km/s
-0.022 arcsec/year
-0.061 arcsec/year

Spectral properties of 12 Boötis

12 Boötis belongs to spectral class F9 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where 12 Boötis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 12 Boötis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 12 Boötis