ξ1 Sagittarii (xi1 Sagittarii)
ξ1 Sagittarii is a hypergiant star in the constellation of Sagittarius.
ξ1 Sagittarii visual magnitude is 5.08. Because of its reltive faintness, ξ1 Sagittarii 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 ξ1 Sagittarii:
Celestial coordinates and finder chart of ξ1 Sagittarii
ξ1 Sagittarii 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 ξ1 Sagittarii are provided in the following table:
The simplified sky map below shows the position of ξ1 Sagittarii in the sky:
Visibility of ξ1 Sagittarii from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's ξ1 Sagittarii (xi1 Sagittarii) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of ξ1 Sagittarii
The image below is a photograph of ξ1 Sagittarii 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 ξ1 Sagittarii is -0.001 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of ξ1 Sagittarii from the Sun and relative movement
ξ1 Sagittarii is distant 5,015.38 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.
Spectral properties of ξ1 Sagittarii
ξ1 Sagittarii belongs to spectral class A0 and has a luminosity class of II corresponding to a hypergiant star.
The red dot in the diagram below shows where ξ1 Sagittarii is situated in the Hertzsprung–Russell diagram.