HR4739 is a variable giant star in the constellation of Crux.
HR4739 visual magnitude is 5.5. Because of its reltive faintness, HR4739 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 HR4739:
Celestial coordinates and finder chart of HR4739
HR4739 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 HR4739 are provided in the following table:
The simplified sky map below shows the position of HR4739 in the sky:
Visibility of HR4739 from your location
HR4739 is currently not visible from Greenwich, United Kingdom [change]
Digitized Sky Survey image of HR4739
The image below is a photograph of HR4739 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 HR4739 is -0.031 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR4739 from the Sun and relative movement
HR4739 is distant 565.97 light years from the Sun and it is moving far from the Sun at the speed of 72 kilometers per second.
Spectral properties of HR4739
HR4739 belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR4739 is situated in the Hertzsprung–Russell diagram.