HR821

HR821 is a main-sequence star in the constellation of Horologium.

HR821 visual magnitude is 6.15. Because of its reltive faintness, HR821 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR821 is -0.012 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Key facts about HR821

Celestial coordinates and finder chart of HR821

HR821 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR821 are provided in the following table:

The simplified sky map below shows the position of HR821 in the sky:

Visibility of HR821 from your location

HR821 is currently not visible from Greenwich, United Kingdom

Distance of HR821 from the Sun and relative movement

HR821 is distant 404.47 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

Spectral properties of HR821

HR821 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

The red dot in the diagram below shows where HR821 is situated in the Hertzsprung–Russell diagram.

Alternative designations of HR821