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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?

HR4556

Altitude: -83.3°   Azimuth: 154.1°   Direction: South-South-East

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 skies, while it is not visible at all from skies affected by light pollution.

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);

Key facts about HR4556

6.06
Hypergiant

HR4556 is below the horizon from Greenwich, United Kingdom.

Altitude: -83.3°
Azimuth: 154.1°
Direction: South-South-East

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 hemisphere. 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”
295.26°
4.61°
Centaurus

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
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR4556 is currently not visible from Greenwich, United Kingdom

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.

-2.06
A0III
9542K

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

SAO239475
SAO239475