15 Sagittarii is a hypergiant star in the constellation of Sagittarius.
15 Sagittarii visual magnitude is 5.38. Because of its reltive faintness, 15 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 15 Sagittarii:
Celestial coordinates and finder chart of 15 Sagittarii
15 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 15 Sagittarii are provided in the following table:
The simplified sky map below shows the position of 15 Sagittarii in the sky:
Visibility of 15 Sagittarii from your location
Digitized Sky Survey image of 15 Sagittarii
The image below is a photograph of 15 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 15 Sagittarii is 0.003 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of 15 Sagittarii from the Sun and relative movement
15 Sagittarii is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.
Spectral properties of 15 Sagittarii
15 Sagittarii belongs to spectral class B0 and has a luminosity class of I corresponding to a hypergiant star.
The red dot in the diagram below shows where 15 Sagittarii is situated in the Hertzsprung–Russell diagram.