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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?

Hadar - β Centauri (beta Centauri)

Below the horizon.  Never rises today
Altitude: -80.0°   Azimuth: 204.3°   Direction: South-South-West

Hadar, also designated as β Centauri (beta Centauri), is a variable and double giant star of spectral class B1 in the constellation of Centaurus.

Hadar visual magnitude is 0.61, making it the 11th brightest star in the sky. Because of its brightness, Hadar is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Celestial coordinates and finder chart of Hadar

Finder chart Hadar - β Centauri (beta Centauri) star
Simplified finder chart for Hadar - β Centauri (beta Centauri).

Hadar 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 Hadar are provided in the following table:

14h 03m 49s
-60° 22’ 23”
311.77°
1.25°
Centaurus
Image of Hadar - β Centauri (beta Centauri) star
DSS2 image of Hadar. The red arrow shows the motion of Hadar during the next 10000 years (-5.33 arcmin in Right Ascension and -3.17 arcmin in declination);

Key facts about Hadar

0.61
Giant

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

-5.42
B1III
14354K

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

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

Hadar star system properties

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

0.61
3.81
3.2
1.3 arcsec

Distance of Hadar from the Sun and relative movement

Hadar is distant 524.96 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

161.03 pc
524.96 ly
6 km/s
-0.032 arcsec/year
-0.019 arcsec/year

Alternative designations of Hadar

Hadar
β Centauri
(beta Centauri)
SAO252582
SAO252582

Visibility of Hadar from your location

Hadar - β Centauri (beta Centauri) is currently not visible from Greenwich, UK