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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 » Vulpecula » 

HR7811

Above the horizon.  Rise: 21:34 | Tran: 5:34 | Set: 13:30
Alt: 21.05°   Az: 81.55°   Direction: East

HR7811 is a variable giant star of spectral class G6 in the constellation of Vulpecula.

HR7811 visual magnitude is 5.66. Because of its faintness, HR7811 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 HR7811 star
DSS2 image of HR7811. The red arrow shows the motion of HR7811 during the next 10000 years (1.67 arcmin in Right Ascension and -1.83 arcmin in declination);

Celestial Coordinates

Apparent

20h 26m 47s
+21° 29’ 38”
18h 28m 44s
14h 55m 31s

J2000

20h 25m 40s
+21° 24’ 34”

Galactic Coordinates

63.02°
-9.48°

Finder Chart

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Finder chart for HR7811.

Magnitude, Color, Spectral Class

5.66
Giant

-0.45
G6III
4917K

The red dot in the diagram below shows where HR7811 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7811. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7811 is distant 543.33 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

166.67
543.33
-22 km/s
0.01 arcsec/y
-0.011"/y

Alternative Designations

SAO88664
SAO88664

Visibility from Your Location

Today's HR7811 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 68.5°
Max altitude: 60.0°
Azimuth: 291.5°