Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:46  
clear_day Transit: 12:56  
SunsetSet: 21:07 south
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All Constellations » Telescopium » 

ξ Telescopii (xi Telescopii)

Altitude: -80.9°   Azimuth: 255.4°   Direction: West-South-West

ξ Telescopii is a variable bright giant star in the constellation of Telescopium.

ξ Telescopii visual magnitude is 4.94. Because of its moderate brightness, ξ Telescopii 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 table below summarizes the key facts about ξ Telescopii:

Bright giant

ξ Telescopii (xi Telescopii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -80.9°
Azimuth: 255.4°
Direction: West-South-West

Celestial coordinates and finder chart of ξ Telescopii

ξ Telescopii 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 ξ Telescopii are provided in the following table:

20h 07m 23s
-52° 52’ 50”

The simplified sky map below shows the position of ξ Telescopii in the sky:

Finder chart ξ Telescopii (xi Telescopii) star
Simplified finder chart for ξ Telescopii (xi Telescopii).

Visibility of ξ Telescopii from your location

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

ξ Telescopii (xi Telescopii) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of ξ Telescopii

The image below is a photograph of ξ Telescopii 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 ξ Telescopii is -0.014 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ξ Telescopii (xi Telescopii) star
DSS2 image of ξ Telescopii. The red arrow shows the motion of ξ Telescopii during the next 10000 years (-2.33 arcmin in Right Ascension and 1.33 arcmin in declination);

Distance of ξ Telescopii from the Sun and relative movement

ξ Telescopii is distant 1,253.85 light years from the Sun and it is moving far from the Sun at the speed of 36 kilometers per second.

384.62 pc
1,253.85 ly
36 km/s
-0.014 arcsec/year
0.008 arcsec/year

Spectral properties of ξ Telescopii

ξ Telescopii belongs to spectral class M1 and has a luminosity class of II corresponding to a bright giant star.


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

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

Alternative designations of ξ Telescopii

ξ Telescopii
(xi Telescopii)