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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:17
sunny   (Daytime)   What's Visible Now?


Below the horizon.  Never rises today
Altitude: -66.6°   Azimuth: 269.3°   Direction: West

HR4818 is a giant star of spectral class K4 in the constellation of Centaurus.

HR4818 visual magnitude is 5.84. Because of its faintness, HR4818 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR4818

Finder chart HR4818 star
Simplified finder chart for HR4818.

HR4818 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4818 are provided in the following table:

12h 41m 22s
-46° 08’ 44”
Image of HR4818 star
DSS2 image of HR4818. The red arrow shows the motion of HR4818 during the next 10000 years (-11.50 arcmin in Right Ascension and 9.50 arcmin in declination);

Key facts about HR4818


and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4818 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4818. Attribution: Richard Powell / CC BY-SA

Distance of HR4818 from the Sun and relative movement

HR4818 is distant 797.07 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

244.50 pc
797.07 ly
7 km/s
-0.069 arcsec/year
0.057 arcsec/year

Alternative designations of HR4818


Visibility of HR4818 from your location

HR4818 is currently not visible from Greenwich, United Kingdom