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public LocationGreenwich, UK
Sunrise: 4:58 
Transit: 13:04 
Sunset: 21:09
sunny   (Daytime)   What's Visible Now?
All Constellations » Sagittarius » 


Below the horizon.  Rise: 21:57 | Tran: 23:35 | Set: 1:17
Altitude: -10.1°   Azimuth: 137.0°   Direction: South-East

HR6739 is a double giant star of spectral class K2 in the constellation of Sagittarius.

HR6739 visual magnitude is 6. Because of its faintness, HR6739 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.

HR6739 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere.

Image of HR6739 star
DSS2 image of HR6739. The red arrow shows the motion of HR6739 during the next 10000 years (-2.67 arcmin in Right Ascension and -5.83 arcmin in declination);

Apparent Coordinates

18h 06m 29s
-35° 53’ 52”
20h 14m 38s

J2000 Coordinates

18h 04m 50s
-35° 54’ 05”

Galactic Coordinates


Finder Chart

Finder chart HR6739 star
Simplified finder chart for HR6739.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where HR6739 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6739. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR6739 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR6739 double sysyem:

12.5 arcsec

Distance, Radial Speed, Proper Motion

HR6739 is distant 355.12 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

108.93 pc
355.12 ly
-16 km/s
-0.016 arcsec/y
-0.035 "/y

Alternative Designations


Visibility from Your Location

Today's HR6739 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 125.9°
Max altitude: 2.6°
Azimuth: 234.1°