We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support helps us pay the server bills » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sunny DaytimeWhat's Visible Now?
All Constellations » Centaurus » 

ξ1 Centauri (xi1 Centauri)

Altitude: -42.7°   Azimuth: 239.8°   Direction: West-South-West

ξ1 Centauri is a hypergiant star in the constellation of Centaurus.

ξ1 Centauri visual magnitude is 4.85. Because of its moderate brightness, ξ1 Centauri should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of ξ1 Centauri is -0.059 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ξ1 Centauri (xi1 Centauri) star
DSS2 image of ξ1 Centauri. The red arrow shows the motion of ξ1 Centauri during the next 10000 years (-9.83 arcmin in Right Ascension and -2.33 arcmin in declination);

Key facts about ξ1 Centauri


ξ1 Centauri (xi1 Centauri) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -42.7°
Azimuth: 239.8°
Direction: West-South-West

Celestial coordinates and finder chart of ξ1 Centauri

ξ1 Centauri 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 ξ1 Centauri are provided in the following table:

13h 03m 33s
-49° 31’ 37”

The simplified sky map below shows the position of ξ1 Centauri in the sky:

Finder chart ξ1 Centauri (xi1 Centauri) star
Simplified finder chart for ξ1 Centauri (xi1 Centauri).

Visibility of ξ1 Centauri from your location

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

ξ1 Centauri (xi1 Centauri) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of ξ1 Centauri from the Sun and relative movement

ξ1 Centauri is distant 217.77 light years from the Sun

66.80 pc
217.77 ly
-0.059 arcsec/year
-0.014 arcsec/year

Spectral properties of ξ1 Centauri

ξ1 Centauri belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where ξ1 Centauri is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ξ1 Centauri. Attribution: Richard Powell / CC BY-SA

Alternative designations of ξ1 Centauri

ξ1 Centauri
(xi1 Centauri)