φ Boötis (phi Boötis)

Above the horizon. Rise: 13:16 | Tran: 22:16 | Set: 7:20

Alt: 6.80° Az: 318.72° 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.

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

Right Ascension 15h 38m 44s

Declination +40° 16’ 16”

Hour Angle 08h 03m 23s

Sidereal Time 23h 42m 08s

J2000

Right Ascension 15h 37m 49s

Declination +40° 21’ 11”

Galactic Coordinates

Galactic Longitude 64.95°

Galactic Latitude 53.37°

Finder Chart

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Finder chart for φ Boötis (phi Boötis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.24

Class Giant

Absolute magnitude 1.75

Spectral Type G7III

Color Index (B-V) 0.88

Temperature 5051K

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

Distance (parsec) 50.00

Distance (light year) 163.00

Radial Speed -10 km/s

Proper Motion RA 0.063 arcsec/y

Proper Motion Dec 0.062"/y

Alternative Designations

Bayer designation φ Boötis
(phi Boötis)

Flamsteed designation 54 Boötis

Henry Draper Catalogue HD139641

SAO Catalogue SAO45643

Hipparcos Catalogue HIP76534

Durchmusterung Catalogue BD+40 2907

FK5 Catalogue 580

Visibility from Your Location

Today's φ Boötis (phi Boötis) rise, transit and set times from Vithkuq, Albania are the following (all times relative to the local timezone Europe/Tirane):

Azimuth: 49.7° RISE 13:16

Max altitude: 89.9° TRANSIT 22:16

Azimuth: 310.3° SET 7:20

Name:	Vithkuq, Albania
Latitude:	40° 12' 16.9" N
Longitude:	20° 15' 33.8" E
Timezone:	Europe/Tirane

Set Location

Other stars in Boötes