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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:02 
Transit: 12:56 
Sunset: 20:51
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All Constellations » Centaurus » 

η Centauri (eta Centauri)

Below the horizon.  Never rises today
Alt: -4.35°   Az: 189.05°   Direction: South

η Centauri is a variable main-sequence star of spectral class B1 in the constellation of Centaurus.

η Centauri visual magnitude is 2.31. Because of its brightness, η Centauri 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.

Image of η Centauri (eta Centauri) star
DSS2 image of η Centauri. The red arrow shows the motion of η Centauri during the next 10000 years (-5.83 arcmin in Right Ascension and -5.83 arcmin in declination);

Celestial Coordinates

Apparent

14h 37m 07s
-42° 16’ 02”
00h 48m 58s
15h 26m 05s

J2000

14h 35m 30s
-42° 09’ 28”

Galactic Coordinates

322.77°
16.67°

Finder Chart

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Finder chart for η Centauri (eta Centauri).

Magnitude, Color, Spectral Class

2.31
Main-sequence

-2.57
B1V
13348K

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

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

Distance, Radial Speed, Proper Motion

η Centauri is distant 308.42 light years from the Sun

94.61
308.42
-0.035 arcsec/y
-0.035"/y

Alternative Designations

η Centauri
(eta Centauri)
SAO225044
SAO225044

Visibility from Your Location

η Centauri (eta Centauri) is currently not visible from Greenwich, UK