HR4939 is a variable giant star in the constellation of Centaurus.
HR4939 visual magnitude is 6.43. Because of its reltive faintness, HR4939 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 HR4939:
Celestial coordinates and finder chart of HR4939
HR4939 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 HR4939 are provided in the following table:
The simplified sky map below shows the position of HR4939 in the sky:
Visibility of HR4939 from your location
HR4939 is currently not visible from Greenwich, United Kingdom [change]
Digitized Sky Survey image of HR4939
The image below is a photograph of HR4939 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 HR4939 is -0.048 arcsec per year in Right Ascension and 0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR4939 from the Sun and relative movement
HR4939 is distant 1,101.35 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.
Spectral properties of HR4939
HR4939 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 HR4939 is situated in the Hertzsprung–Russell diagram.