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public LocationGreenwich, UK
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?

ξ Serpentis (xi Serpentis)

Below the horizon.  Rise: 19:57 | Tran: 0:34 | Set: 5:16
Altitude: -8.0°   Azimuth: 104.7°   Direction: East-South-East

ξ Serpentis is a variable and double hypergiant star of spectral class F0 in the constellation of Serpens.

ξ Serpentis visual magnitude is 3.54. Because of its moderate brightness, ξ Serpentis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Celestial coordinates and finder chart of ξ Serpentis

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

ξ Serpentis 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 ξ Serpentis are provided in the following table:

17h 37m 35s
-15° 23’ 54”
Image of ξ Serpentis (xi Serpentis) star
DSS2 image of ξ Serpentis. The red arrow shows the motion of ξ Serpentis during the next 10000 years (-7.00 arcmin in Right Ascension and -9.67 arcmin in declination);

Key facts about ξ Serpentis


and has a luminosity class of IV corresponding to a hypergiant star.


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

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

ξ Serpentis star system properties

ξ Serpentis is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the ξ Serpentis double sysyem:

22 arcsec

Distance of ξ Serpentis from the Sun and relative movement

ξ Serpentis is distant 105.40 light years from the Sun and it is moving towards the Sun at the speed of 43 kilometers per second.

32.33 pc
105.40 ly
-43 km/s
-0.042 arcsec/year
-0.058 arcsec/year

Alternative designations of ξ Serpentis

ξ Serpentis
(xi Serpentis)
55 Serpentis

Visibility of ξ Serpentis from your location

Today's ξ Serpentis (xi Serpentis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 105.4°
Max altitude: 23.1°
Azimuth: 254.6°