Sham - α Sagittae (alpha Sagittae)
Sham, also designated as α Sagittae (alpha Sagittae), is a multiple bright giant star in the constellation of Sagitta.
Sham visual magnitude is 4.37. Because of its moderate brightness, Sham 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 Sham:
Celestial coordinates and finder chart of Sham
Sham 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 Sham are provided in the following table:
The simplified sky map below shows the position of Sham in the sky:
Visibility of Sham from your location
Today's Sham - α Sagittae (alpha Sagittae) rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of Sham
The image below is a photograph of Sham 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 Sham is 0.014 arcsec per year in Right Ascension and -0.021 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of Sham from the Sun and relative movement
Sham is distant 473.15 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.
Spectral properties of Sham
Sham belongs to spectral class G1 and has a luminosity class of II corresponding to a bright giant star.
The red dot in the diagram below shows where Sham is situated in the Hertzsprung–Russell diagram.
Sham star system properties
Sham 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 Sham double sysyem: