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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:52 
Transit: 12:57 
Sunset: 21:03
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All Constellations » Sagittarius » 

HR7639

Below the horizon.  Never rises today
Alt: -67.66°   Az: 287.46°   Direction: West-North-West

HR7639 is a main-sequence star of spectral class A2 in the constellation of Sagittarius.

HR7639 visual magnitude is 6.29. Because of its faintness, HR7639 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 HR7639 star
DSS2 image of HR7639. The red arrow shows the motion of HR7639 during the next 10000 years (-2.50 arcmin in Right Ascension and -6.33 arcmin in declination);

Celestial Coordinates

Apparent

20h 03m 09s
-40° 44’ 31”
10h 05m 39s
06h 08m 48s

J2000

20h 01m 26s
-40° 48’ 51”

Galactic Coordinates

359.42°
-30.04°

Finder Chart

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Finder chart for HR7639.

Magnitude, Color, Spectral Class

6.29
Main-sequence

1.62
A2V
8932K

The red dot in the diagram below shows where HR7639 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7639. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7639 is distant 279.83 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.

85.84
279.83
-31 km/s
-0.015 arcsec/y
-0.038"/y

Alternative Designations

SAO229993
SAO229993

Visibility from Your Location

HR7639 is currently not visible from Greenwich, UK