HR7155 is a hypergiant star in the constellation of Sagittarius.
HR7155 visual magnitude is 6.62. Because of its reltive faintness, HR7155 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 HR7155:
Celestial coordinates and finder chart of HR7155
HR7155 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 HR7155 are provided in the following table:
The simplified sky map below shows the position of HR7155 in the sky:
Visibility of HR7155 from your location
Digitized Sky Survey image of HR7155
The image below is a photograph of HR7155 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 HR7155 is 0.007 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 HR7155 from the Sun and relative movement
HR7155 is distant 1,314.52 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.
Spectral properties of HR7155
HR7155 belongs to spectral class A0
The red dot in the diagram below shows where HR7155 is situated in the Hertzsprung–Russell diagram.