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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: 7:03  
clear_day Transit: 12:12  
SunsetSet: 17:22
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Scorpius » 

χ Scorpii (chi Scorpii)

Altitude: -50.4°   Azimuth: 1.2°   Direction: North

χ Scorpii is a giant star in the constellation of Scorpius.

χ Scorpii visual magnitude is 5.22. Because of its reltive faintness, χ Scorpii should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of χ Scorpii is -0.01 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of χ Scorpii (chi Scorpii) star
DSS2 image of χ Scorpii. The red arrow shows the motion of χ Scorpii during the next 10000 years (-1.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Key facts about χ Scorpii

5.22
Giant

χ Scorpii (chi Scorpii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -50.4°
Azimuth: 1.2°
Direction: North

Celestial coordinates and finder chart of χ Scorpii

χ Scorpii is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of χ Scorpii are provided in the following table:

16h 13m 50s
-11° 50’ 15”
1.3°
27.34°
Scorpius

The simplified sky map below shows the position of χ Scorpii in the sky:

Finder chart χ Scorpii (chi Scorpii) star
Simplified finder chart for χ Scorpii (chi Scorpii).

Visibility of χ Scorpii 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 χ Scorpii (chi Scorpii) 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: 101.8°
Max altitude: 26.7°
Azimuth: 258.2°

Distance of χ Scorpii from the Sun and relative movement

χ Scorpii is distant 438.76 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

134.59 pc
438.76 ly
-25 km/s
-0.01 arcsec/year
-0.006 arcsec/year

Spectral properties of χ Scorpii

χ Scorpii belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.

-0.43
K3III
3918K

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

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

Alternative designations of χ Scorpii

χ Scorpii
(chi Scorpii)
SAO159793
SAO159793