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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
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All Constellations » Scorpius » 


Altitude: -36.6°   Azimuth: 109.2°   Direction: East-South-East

HR6683 is a double hypergiant star in the constellation of Scorpius.

HR6683 visual magnitude is 6.29. Because of its reltive faintness, HR6683 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR6683:


HR6683 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -36.6°
Azimuth: 109.2°
Direction: East-South-East

Celestial coordinates and finder chart of HR6683

HR6683 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 HR6683 are provided in the following table:

17h 57m 57s
-39° 08’ 12”

The simplified sky map below shows the position of HR6683 in the sky:

Finder chart HR6683 star
Simplified finder chart for HR6683.

Visibility of HR6683 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR6683 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR6683

The image below is a photograph of HR6683 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR6683 is -0.005 arcsec per year in Right Ascension and -0.039 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6683 star
DSS2 image of HR6683. The red arrow shows the motion of HR6683 during the next 10000 years (-0.83 arcmin in Right Ascension and -6.50 arcmin in declination);

Distance of HR6683 from the Sun and relative movement

HR6683 is distant 513.39 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

157.48 pc
513.39 ly
-1 km/s
-0.005 arcsec/year
-0.039 arcsec/year

Spectral properties of HR6683

HR6683 belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR6683 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6683. Attribution: Richard Powell / CC BY-SA

HR6683 star system properties

HR6683 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR6683 double sysyem:

0.7 arcsec

Alternative designations of HR6683