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public LocationGreenwich, UK
Sunrise: 5:01 
Transit: 13:04 
Sunset: 21:06
sunny   (Daytime)   What's Visible Now?
All Constellations » Centaurus » 


Below the horizon.  Never rises today
Alt: -61.96°   Az: 132.60°   Direction: South-East

HR5171 is a variable and double hypergiant star of spectral class K0 in the constellation of Centaurus.

HR5171 visual magnitude is 6.51. Because of its faintness, HR5171 is not visible to the naked eye.

HR5171 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere.

Image of HR5171 star
DSS2 image of HR5171. The red arrow shows the motion of HR5171 during the next 10000 years (-3.83 arcmin in Right Ascension and -1.83 arcmin in declination);

Celestial Coordinates


13h 48m 54s
-62° 42’ 42”
15h 16m 02s
05h 04m 57s


13h 47m 10s
-62° 35’ 24”

Galactic Coordinates


Finder Chart

Finder chart HR5171 star
Simplified finder chart for HR5171.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where HR5171 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5171. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR5171 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR5171 double sysyem:

9.4 arcsec

Distance, Radial Speed, Proper Motion

HR5171 is distant 11,642.86 light years from the Sun and it is moving towards the Sun at the speed of 36 kilometers per second.

3,571.43 pc
11,642.86 ly
-36 km/s
-0.023 arcsec/y
-0.011 "/y

Alternative Designations


Visibility from Your Location

HR5171 is currently not visible from Greenwich, UK