HR4644 is a supergiant star in the constellation of Crux.
HR4644 visual magnitude is 5.92. Because of its reltive faintness, HR4644 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 HR4644:
Celestial coordinates and finder chart of HR4644
HR4644 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 HR4644 are provided in the following table:
The simplified sky map below shows the position of HR4644 in the sky:
Visibility of HR4644 from your location
HR4644 is currently not visible from Greenwich, United Kingdom [change]
Digitized Sky Survey image of HR4644
The image below is a photograph of HR4644 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 HR4644 is -0.007 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of HR4644 from the Sun and relative movement
HR4644 is distant 4,865.67 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.
Spectral properties of HR4644
HR4644 belongs to spectral class B8 and has a luminosity class of I corresponding to a supergiant star.
The red dot in the diagram below shows where HR4644 is situated in the Hertzsprung–Russell diagram.