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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
SunriseRise: 6:44  
clear_day Transit: 12:10  
SunsetSet: 17:38
sleep NighttimeWhat's Visible Now?
All Constellations » Scorpius » 


Altitude: -66.7°   Azimuth: 42.9°   Direction: North-East

HR6422 is a variable and double main-sequence star in the constellation of Scorpius.

HR6422 visual magnitude is 6.36. Because of its reltive faintness, HR6422 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR6422 is -0.013 arcsec per year in Right Ascension and -0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6422 star
DSS2 image of HR6422. The red arrow shows the motion of HR6422 during the next 10000 years (-2.17 arcmin in Right Ascension and -3.17 arcmin in declination);

Key facts about HR6422


HR6422 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -66.7°
Azimuth: 42.9°
Direction: North-East

Celestial coordinates and finder chart of HR6422

HR6422 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 HR6422 are provided in the following table:

17h 18m 20s
-32° 33’ 11”

The simplified sky map below shows the position of HR6422 in the sky:

Finder chart HR6422 star
Simplified finder chart for HR6422.

Visibility of HR6422 from your location

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

Today's HR6422 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 122.6°
Max altitude: 6.0°
Azimuth: 237.4°

Distance of HR6422 from the Sun and relative movement

HR6422 is distant 1,258.69 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

386.10 pc
1,258.69 ly
-14 km/s
-0.013 arcsec/year
-0.019 arcsec/year

Spectral properties of HR6422

HR6422 belongs to spectral class B5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR6422 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6422. Attribution: Richard Powell / CC BY-SA

HR6422 star system properties

HR6422 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 HR6422 double sysyem:

19.5 arcsec

Alternative designations of HR6422