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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:08 
Transit: 13:06 
Sunset: 21:03
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Centaurus » 

HR4556

Below the horizon.  Never rises today
Alt: -66.53°   Az: 239.43°   Direction: West-South-West

HR4556 is a hypergiant star of spectral class A0 in the constellation of Centaurus.

HR4556 visual magnitude is 6.06. Because of its faintness, HR4556 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.

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);

Celestial Coordinates

Apparent

11h 55m 25s
-57° 32’ 47”
09h 21m 09s
21h 16m 34s

J2000

11h 54m 11s
-57° 24’ 35”

Galactic Coordinates

295.26°
4.61°

Finder Chart

Finder chart HR4556 star
Simplified finder chart for HR4556.

Magnitude, Color, Spectral Class

6.06
Hypergiant

-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

Distance, Radial Speed, Proper Motion

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
1,369.75
-14 km/s
-0.014 arcsec/y
0.005"/y

Alternative Designations

SAO239475
SAO239475

Visibility from Your Location

HR4556 is currently not visible from Greenwich, UK