HR8121 is a variable giant star in the constellation of Aquarius.
HR8121 visual magnitude is 6.38. Because of its reltive faintness, HR8121 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 HR8121:
Celestial coordinates and finder chart of HR8121
HR8121 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 HR8121 are provided in the following table:
The simplified sky map below shows the position of HR8121 in the sky:
Visibility of HR8121 from your location
Digitized Sky Survey image of HR8121
The image below is a photograph of HR8121 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 HR8121 is 0.028 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR8121 from the Sun and relative movement
HR8121 is distant 684.87 light years from the Sun and it is moving towards the Sun at the speed of 124 kilometers per second.
Spectral properties of HR8121
HR8121 belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR8121 is situated in the Hertzsprung–Russell diagram.