13 Sagittae is a variable and double giant star in the constellation of Sagitta.
13 Sagittae visual magnitude is 5.37. Because of its reltive faintness, 13 Sagittae 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 13 Sagittae:
Celestial coordinates and finder chart of 13 Sagittae
13 Sagittae 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 13 Sagittae are provided in the following table:
The simplified sky map below shows the position of 13 Sagittae in the sky:
Visibility of 13 Sagittae from your location
Digitized Sky Survey image of 13 Sagittae
The image below is a photograph of 13 Sagittae 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 13 Sagittae is 0.004 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 13 Sagittae from the Sun and relative movement
13 Sagittae is distant 746.00 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.
Spectral properties of 13 Sagittae
13 Sagittae belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where 13 Sagittae is situated in the Hertzsprung–Russell diagram.
13 Sagittae star system properties
13 Sagittae 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 13 Sagittae double sysyem: