HR7991 is a giant star in the constellation of Microscopium.
HR7991 visual magnitude is 6.35. Because of its reltive faintness, HR7991 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 HR7991:
Celestial coordinates and finder chart of HR7991
HR7991 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7991 are provided in the following table:
The simplified sky map below shows the position of HR7991 in the sky:
Visibility of HR7991 from your location
Digitized Sky Survey image of HR7991
The image below is a photograph of HR7991 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 HR7991 is 0.036 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR7991 from the Sun and relative movement
HR7991 is distant 530.94 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.
Spectral properties of HR7991
HR7991 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR7991 is situated in the Hertzsprung–Russell diagram.