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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:09 
Transit: 11:43 
Sunset: 16:18
wb_twilight   (Nautical Twilight)  
What's Visible Now • Tonight Timeline
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All Constellations » Boötes » 

υ Boötis (upsilon Boötis)

Above the horizon.  Rise: 3:14 | Tran: 10:34 | Set: 17:54
Alt: 8.47°   Az: 284.56°   Direction: West-North-West

υ Boötis is a variable giant star of spectral class K5 in the constellation of Boötes.

υ Boötis visual magnitude is 4.07. Because of its moderate brightness, υ 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 υ Boötis (upsilon Boötis) star
DSS2 image of υ Boötis. The red arrow shows the motion of υ Boötis during the next 1000 years (-1.58 arcmin in Right Ascension and 0.70 arcmin in declination);

Celestial Coordinates

Apparent

13h 50m 40s
+15° 40’ 30”
06h 24m 30s
20h 15m 11s

J2000

13h 49m 28s
+15° 47’ 52”

Galactic Coordinates

355.81°
72.4°

Finder Chart

Finder chart υ Boötis (upsilon Boötis) star
Simplified finder chart for υ Boötis (upsilon Boötis).

Magnitude, Color, Spectral Class

4.07
Giant

-0.31
K5III
3764K

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

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

Distance, Radial Speed, Proper Motion

υ Boötis is distant 245.30 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

75.24
245.30
-6 km/s
-0.095 arcsec/y
0.042"/y

Alternative Designations

υ Boötis
(upsilon Boötis)
SAO100725
SAO100725

Visibility from Your Location

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

Azimuth: 74.3°
Max altitude: 54.2°
Azimuth: 285.7°