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🌎  Greenwich, United Kingdom [change]


HR4556 is a hypergiant star in the constellation of Centaurus.

HR4556 visual magnitude is 6.06. Because of its reltive faintness, HR4556 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 HR4556:

HR4556 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4556

HR4556 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 HR4556 are provided in the following table:

11h 54m 11s
-57° 24’ 35”

The simplified sky map below shows the position of HR4556 in the sky:

Finder chart HR4556 star
Simplified finder chart for HR4556.

Visibility of HR4556 from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR4556 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4556

The image below is a photograph of HR4556 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 HR4556 is -0.014 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.

Image of HR4556 star
DSS2 image of HR4556. The red arrow shows the motion of HR4556 during the next 10000 years (-2.33 arcmin in Right Ascension and 0.83 arcmin in declination);

Distance of HR4556 from the Sun and relative movement

HR4556 is distant 1,369.75 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

420.17 pc
1,369.75 ly
-14 km/s
-0.014 arcsec/year
0.005 arcsec/year

Spectral properties of HR4556

HR4556 belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR4556 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4556. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4556