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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:02 
Transit: 12:56 
Sunset: 20:51
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All Constellations » Boötes » 

φ Boötis (phi Boötis)

Above the horizon.  Circumpolar today
Alt: 24.20°   Az: 304.98°   Direction: North-West

φ Boötis is a giant star of spectral class G7 in the constellation of Boötes.

φ Boötis visual magnitude is 5.24. Because of its faintness, φ Boötis is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of φ Boötis (phi Boötis) star
DSS2 image of φ Boötis. The red arrow shows the motion of φ Boötis during the next 10000 years (10.50 arcmin in Right Ascension and 10.33 arcmin in declination);

Celestial Coordinates

Apparent

15h 38m 44s
+40° 16’ 17”
06h 46m 32s
22h 25m 16s

J2000

15h 37m 49s
+40° 21’ 11”

Galactic Coordinates

64.95°
53.37°

Finder Chart

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Finder chart for φ Boötis (phi Boötis).

Magnitude, Color, Spectral Class

5.24
Giant

1.75
G7III
5051K

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

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

Distance, Radial Speed, Proper Motion

φ Boötis is distant 163.00 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

50.00
163.00
-10 km/s
0.063 arcsec/y
0.062"/y

Alternative Designations

φ Boötis
(phi Boötis)
SAO45643
SAO45643

Visibility from Your Location

φ Boötis (phi Boötis) is circumpolar and transits at 23:43 UTC (altitude: 78.8°)