Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]


HR4523 is a main-sequence star in the constellation of Centaurus.

HR4523 visual magnitude is 4.91. Because of its moderate brightness, HR4523 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 HR4523:

HR4523 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4523

HR4523 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 HR4523 are provided in the following table:

11h 46m 31s
-40° 30’ 02”

The simplified sky map below shows the position of HR4523 in the sky:

Finder chart HR4523 star
Simplified finder chart for HR4523.

Visibility of HR4523 from your location

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

HR4523 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4523

The image below is a photograph of HR4523 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 HR4523 is -1.531 arcsec per year in Right Ascension and 0.401 arcsec per year in Declination and the associated displacement for the next 100 years is represented with the red arrow.

Image of HR4523 star
DSS2 image of HR4523. The red arrow shows the motion of HR4523 during the next 100 years (-2.55 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of HR4523 from the Sun and relative movement

HR4523 is distant 30.12 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

9.24 pc
30.12 ly
15 km/s
-1.531 arcsec/year
0.401 arcsec/year

Spectral properties of HR4523

HR4523 belongs to spectral class G3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4523 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4523. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4523

Gl 442 A