HR5540 is a variable giant star in the constellation of Apus.
HR5540 visual magnitude is 5.34. Because of its reltive faintness, HR5540 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 HR5540:
Celestial coordinates and finder chart of HR5540
HR5540 is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR5540 are provided in the following table:
The simplified sky map below shows the position of HR5540 in the sky:
Visibility of HR5540 from your location
HR5540 is currently not visible from Greenwich, United Kingdom [change]
Digitized Sky Survey image of HR5540
The image below is a photograph of HR5540 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 HR5540 is -0.074 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.
Distance of HR5540 from the Sun and relative movement
HR5540 is distant 427.82 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.
Spectral properties of HR5540
HR5540 belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR5540 is situated in the Hertzsprung–Russell diagram.