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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:13 
Transit: 12:47 
Sunset: 18:20
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All Constellations » Boötes » 

47 Boötis

Above the horizon.  Circumpolar today
Alt: 10.14°   Az: 8.68°   Direction: North

47 Boötis is a variable and double main-sequence star of spectral class A1 in the constellation of Boötes.

47 Boötis visual magnitude is 5.57. Because of its faintness, 47 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 47 Boötis star
DSS2 image of 47 Boötis. The red arrow shows the motion of 47 Boötis during the next 10000 years (-11.00 arcmin in Right Ascension and 5.17 arcmin in declination);

Celestial Coordinates

Apparent

15h 06m 15s
+48° 03’ 22”
12h 51m 21s
03h 57m 36s

J2000

15h 05m 25s
+48° 09’ 03”

Galactic Coordinates

80.95°
56.6°

Finder Chart

Finder chart 47 Boötis star
Simplified finder chart for 47 Boötis.

Magnitude, Color, Spectral Class

5.57
Main-sequence

1.06
A1V
10125K

The red dot in the diagram below shows where 47 Boötis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 47 Boötis. Attribution: Richard Powell / CC BY-SA

Star System Properties

47 Boötis is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 47 Boötis double sysyem:

5.57
13.27
7.7
6.2 arcsec

Distance, Radial Speed, Proper Motion

47 Boötis is distant 259.76 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

79.68
259.76
-13 km/s
-0.066 arcsec/y
0.031"/y

Alternative Designations

SAO45370
SAO45370

Visibility from Your Location

47 Boötis is circumpolar and transits at 13:55 UTC (altitude: 86.6°)