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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:16
wb_twilight   (Civil Twilight)   What's Visible Now?


Below the horizon.  Rise: 23:19 | Tran: 1:18 | Set: 3:12
Altitude: -7.8°   Azimuth: 221.0°   Direction: South-West

HR6658 is a double giant star of spectral class K3 in the constellation of Scorpius.

HR6658 visual magnitude is 5.6. Because of its faintness, HR6658 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.

Celestial coordinates and finder chart of HR6658

Finder chart HR6658 star
Simplified finder chart for HR6658.

HR6658 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6658 are provided in the following table:

17h 53m 23s
-34° 53’ 43”
Image of HR6658 star
DSS2 image of HR6658. The red arrow shows the motion of HR6658 during the next 10000 years (-1.50 arcmin in Right Ascension and -1.67 arcmin in declination);

Key facts about HR6658


and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR6658 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6658. Attribution: Richard Powell / CC BY-SA

HR6658 star system properties

HR6658 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 HR6658 double sysyem:

0.4 arcsec

Distance of HR6658 from the Sun and relative movement

HR6658 is distant 1,055.02 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

323.62 pc
1,055.02 ly
-7 km/s
-0.009 arcsec/year
-0.01 arcsec/year

Alternative designations of HR6658


Visibility of HR6658 from your location

Today's HR6658 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 124.9°
Max altitude: 3.6°
Azimuth: 235.1°