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public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:09 
Transit: 12:54 
Sunset: 20:41
sunny   (Daytime)   What's Visible Now?

HR4818

Altitude: -57.7°   Azimuth: 259.6°   Direction: West

HR4818 is a giant star in the constellation of Centaurus.

HR4818 visual magnitude is 5.84. Because of its reltive faintness, HR4818 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4818 is -0.069 arcsec per year in Right Ascension and 0.057 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

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

5.84
Giant

HR4818 is below the horizon from Greenwich, United Kingdom.

Altitude: -57.7°
Azimuth: 259.6°
Direction: West

Celestial coordinates and finder chart of 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”
301.12°
16.69°
Centaurus

The simplified sky map below shows the position of HR4818 in the sky:

Finder chart HR4818 star
Simplified finder chart for HR4818.

Visibility of HR4818 from your location

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

HR4818 is currently not visible from Greenwich, United Kingdom

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

Spectral properties of HR4818

HR4818 belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.

-1.10
K4III
3764K

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

Alternative designations of HR4818

SAO223601
SAO223601