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🌎  Greenwich, United Kingdom [change]


HR4522 is a variable and double supergiant star in the constellation of Centaurus.

HR4522 visual magnitude is 4.11. Because of its moderate brightness, HR4522 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR4522:

HR4522 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4522

HR4522 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 HR4522 are provided in the following table:

11h 46m 30s
-61° 10’ 41”

The simplified sky map below shows the position of HR4522 in the sky:

Finder chart HR4522 star
Simplified finder chart for HR4522.

Visibility of HR4522 from your location

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

HR4522 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4522

The image below is a photograph of HR4522 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 HR4522 is -0.027 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.

Image of HR4522 star
DSS2 image of HR4522. The red arrow shows the motion of HR4522 during the next 10000 years (-4.50 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of HR4522 from the Sun and relative movement

HR4522 is distant 434.09 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

133.16 pc
434.09 ly
-3 km/s
-0.027 arcsec/year
-0.015 arcsec/year

Spectral properties of HR4522

HR4522 belongs to spectral class G5 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where HR4522 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4522. Attribution: Richard Powell / CC BY-SA

HR4522 star system properties

HR4522 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4522 double sysyem:

25 arcsec

Alternative designations of HR4522