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public LocationGreenwich, UK
Sunrise: 4:57 
Transit: 13:04 
Sunset: 21:10
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations » Sagittarius » 


Above the horizon.  Rise: 20:08 | Tran: 0:41 | Set: 5:18
Altitude: 16.4°   Azimuth: 146.9°   Direction: South-South-East

HR7239 is a double sub-giant star of spectral class B8 in the constellation of Sagittarius.

HR7239 visual magnitude is 6.03. Because of its faintness, HR7239 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.

HR7239 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year.

Image of HR7239 star
DSS2 image of HR7239. The red arrow shows the motion of HR7239 during the next 10000 years (3.50 arcmin in Right Ascension and 0.67 arcmin in declination);

Apparent Coordinates

19h 08m 16s
-16° 11’ 21”

J2000 Coordinates

19h 06m 52s
-16° 13’ 44”

Galactic Coordinates


Finder Chart

Finder chart HR7239 star
Simplified finder chart for HR7239.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where HR7239 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7239. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7239 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 HR7239 double sysyem:

6.4 arcsec

Distance, Radial Speed, Proper Motion

HR7239 is distant 893.15 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

273.97 pc
893.15 ly
-17 km/s
0.021 arcsec/y
0.004 "/y

Alternative Designations


Visibility from Your Location

Today's HR7239 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.2°
Max altitude: 22.3°
Azimuth: 253.8°