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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:02 
Transit: 11:43 
Sunset: 16:24
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All Constellations » Boötes » 

20 Boötis

Above the horizon.  Rise: 3:57 | Tran: 11:20 | Set: 18:43
Alt: 0.28°   Az: 296.21°   Direction: West-North-West

20 Boötis is a variable giant star of spectral class K3 in the constellation of Boötes.

20 Boötis visual magnitude is 4.86. Because of its moderate brightness, 20 Boötis 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 20 Boötis star
DSS2 image of 20 Boötis. The red arrow shows the motion of 20 Boötis during the next 1000 years (-2.37 arcmin in Right Ascension and 1.00 arcmin in declination);

Celestial Coordinates

Apparent

14h 20m 56s
+16° 11’ 37”
07h 23m 34s
21h 44m 30s

J2000

14h 19m 45s
+16° 18’ 24”

Galactic Coordinates

9.59°
66.86°

Finder Chart

Finder chart 20 Boötis star
Simplified finder chart for 20 Boötis.

Magnitude, Color, Spectral Class

4.86
Giant

1.03
K3III
4251K

The red dot in the diagram below shows where 20 Boötis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 20 Boötis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

20 Boötis is distant 190.42 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

58.41
190.42
-8 km/s
-0.142 arcsec/y
0.06"/y

Alternative Designations

SAO100980
SAO100980

Visibility from Your Location

Today's 20 Boötis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 73.8°
Max altitude: 54.7°
Azimuth: 286.2°