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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:10 
Transit: 12:13 
Sunset: 17:18
wb_twilight   (Nautical Twilight)  
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All Constellations » Sagittarius » 

Kaus Australis - ε Sagittarii (epsilon Sagittarii)

Below the horizon.  Rise: 6:33 | Tran: 8:35 | Set: 10:37
Alt: -59.95°   Az: 291.19°   Direction: West-North-West

Kaus Australis, also designated as ε Sagittarii (epsilon Sagittarii), is a double giant star of spectral class B9 in the constellation of Sagittarius.

Kaus Australis visual magnitude is 1.85, making it the 36th brightest star in the sky. Because of its brightness, Kaus Australis 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 Kaus Australis - ε Sagittarii (epsilon Sagittarii) star
DSS2 image of Kaus Australis. The red arrow shows the motion of Kaus Australis during the next 1000 years (-0.63 arcmin in Right Ascension and -2.07 arcmin in declination);

Celestial Coordinates

Apparent

18h 25m 50s
-34° 22’ 10”
09h 42m 12s
04h 08m 03s

J2000

18h 24m 10s
-34° 23’ 04”

Galactic Coordinates

359.2°
-9.81°

Finder Chart

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Finder chart for Kaus Australis - ε Sagittarii (epsilon Sagittarii).

Magnitude, Color, Spectral Class

1.85
Giant

-1.38
B9III
10516K

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

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

Star System Properties

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

1.85
14.15
12.3
36.1 arcsec

Distance, Radial Speed, Proper Motion

Kaus Australis is distant 144.57 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

44.35
144.57
-15 km/s
-0.038 arcsec/y
-0.124"/y

Alternative Designations

Kaus Australis
ε Sagittarii
(epsilon Sagittarii)
20 Sagittarii
SAO210091
SAO210091

Visibility from Your Location

Today's Kaus Australis - ε Sagittarii (epsilon Sagittarii) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 124.4°
Max altitude: 4.2°
Azimuth: 235.6°