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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:01 
Transit: 12:56 
Sunset: 20:52
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All Constellations » Cygnus » 

HR7721

Above the horizon.  Circumpolar today
Alt: 35.30°   Az: 55.36°   Direction: North-East

HR7721 is a main-sequence star of spectral class B7 in the constellation of Cygnus.

HR7721 visual magnitude is 6.92. Because of its faintness, HR7721 is not visible to the naked eye.

Image of HR7721 star
DSS2 image of HR7721. The red arrow shows the motion of HR7721 during the next 10000 years (2.67 arcmin in Right Ascension and 0.67 arcmin in declination);

Celestial Coordinates

Apparent

20h 12m 50s
+47° 48’ 50”
17h 58m 57s
14h 11m 47s

J2000

20h 12m 03s
+47° 44’ 12”

Galactic Coordinates

83.37°
7.54°

Finder Chart

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Finder chart for HR7721.

Magnitude, Color, Spectral Class

6.92
Main-sequence

-0.11
B7V
11920K

The red dot in the diagram below shows where HR7721 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7721. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7721 is distant 831.63 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

255.10
831.63
-19 km/s
0.016 arcsec/y
0.004"/y

Alternative Designations

SAO49314
SAO49314

Visibility from Your Location

HR7721 is circumpolar and transits at 04:16 UTC (altitude: 86.3°)