χ Scorpii (chi Scorpii)

Altitude: -16.4° Azimuth: 88.5° Direction: East

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 table below summarizes the key facts about χ Scorpii:

Color of χ Scorpii ⬤

Magnitude of χ Scorpii 5.22

Class Giant

VISIBILITY RIGHT NOW

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

Altitude: -16.4°
Azimuth: 88.5°
Direction: East

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:

Right Ascension J2000 16h 13m 50s

Declination J2000 -11° 50’ 15”

Galactic Longitude 1.3°

Galactic Latitude 27.34°

Constellation 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° RISE 11:36

Max altitude: 26.7° TRANSIT 16:33

Azimuth: 258.2° SET 21:30

Digitized Sky Survey image of χ Scorpii

The image below is a photograph of χ Scorpii 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 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.

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);

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.

Distance (parsec) 134.59 pc

Distance (light year) 438.76 ly

Heliocentric radial velocity -25 km/s

Proper Motion RA -0.01 arcsec/year

Proper Motion Dec -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.

Absolute magnitude -0.43

Spectral Type K3III

Color Index (B-V) 1.42

Temperature of χ Scorpii 3918K

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

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

Alternative designations of χ Scorpii

Bayer designation χ Scorpii
(chi Scorpii)

Flamsteed designation 17 Scorpii

Henry Draper Catalogue HD145897

SAO Catalogue SAO159793

Hipparcos Catalogue HIP79540

Durchmusterung Catalogue BD-11 4096

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