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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:58 
Transit: 12:56 
Sunset: 20:55
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All Constellations » Cygnus » 

HR7743

Above the horizon.  Rise: 19:22 | Tran: 5:12 | Set: 14:58
Alt: 55.24°   Az: 104.07°   Direction: East-South-East

HR7743 is a double hypergiant star of spectral class K0 in the constellation of Cygnus.

HR7743 visual magnitude is 5.66. Because of its faintness, HR7743 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 HR7743 star
DSS2 image of HR7743. The red arrow shows the motion of HR7743 during the next 1000 years (-0.67 arcmin in Right Ascension and -1.77 arcmin in declination);

Celestial Coordinates

Apparent

20h 16m 22s
+33° 48’ 30”
21h 13m 03s
17h 29m 26s

J2000

20h 15m 23s
+33° 43’ 45”

Galactic Coordinates

71.99°
-0.68°

Finder Chart

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Finder chart for HR7743.

Magnitude, Color, Spectral Class

5.66
Hypergiant

0.84
K0III
4970K

The red dot in the diagram below shows where HR7743 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7743. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7743 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 HR7743 double sysyem:

5.66
11.96
6.3
3 arcsec

Distance, Radial Speed, Proper Motion

HR7743 is distant 300.18 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

92.08
300.18
-10 km/s
-0.04 arcsec/y
-0.106"/y

Alternative Designations

SAO69701
SAO69701

Visibility from Your Location

Today's HR7743 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 56.2°
Max altitude: 72.3°
Azimuth: 303.8°