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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:59 
Transit: 12:56 
Sunset: 20:54
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All Constellations » Cygnus » 

HR7642

Below the horizon.  Rise: 17:35 | Tran: 4:59 | Set: 16:19
Alt: -0.16°   Az: 5.18°   Direction: North

HR7642 is a double sub-giant star of spectral class B5 in the constellation of Cygnus.

HR7642 visual magnitude is 6.32. Because of its faintness, HR7642 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 HR7642 star
DSS2 image of HR7642. The red arrow shows the motion of HR7642 during the next 100000 years (15.00 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

19h 59m 29s
+38° 10’ 32”
12h 26m 22s
08h 25m 51s

J2000

19h 58m 34s
+38° 06’ 20”

Galactic Coordinates

73.84°
4.54°

Finder Chart

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Finder chart for HR7642.

Magnitude, Color, Spectral Class

6.32
Sub-giant

-2.34
B5IV
11407K

The red dot in the diagram below shows where HR7642 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7642. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7642 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR7642 double sysyem:

6.32
7.42
1.1
1.9 arcsec

Distance, Radial Speed, Proper Motion

HR7642 is distant 1,762.16 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

540.54
1,762.16
-14 km/s
0.009 arcsec/y
-0.004"/y

Alternative Designations

SAO69193
SAO69193

Visibility from Your Location

Today's HR7642 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.8°
Max altitude: 76.7°
Azimuth: 308.2°