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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
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All Constellations » Ara » 

λ Arae (lambda Arae)

Altitude: -18.1°   Azimuth: 209.3°   Direction: South-South-West

λ Arae is a variable sub-giant star in the constellation of Ara.

λ Arae visual magnitude is 4.77. Because of its moderate brightness, λ Arae should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of λ Arae is 0.078 arcsec per year in Right Ascension and -0.176 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of λ Arae (lambda Arae) star
DSS2 image of λ Arae. The red arrow shows the motion of λ Arae during the next 1000 years (1.30 arcmin in Right Ascension and -2.93 arcmin in declination);

Key facts about λ Arae


λ Arae (lambda Arae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -18.1°
Azimuth: 209.3°
Direction: South-South-West

Celestial coordinates and finder chart of λ Arae

λ Arae 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 λ Arae are provided in the following table:

17h 40m 23s
-49° 24’ 56”

The simplified sky map below shows the position of λ Arae in the sky:

Finder chart λ Arae (lambda Arae) star
Simplified finder chart for λ Arae (lambda Arae).

Visibility of λ Arae from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

λ Arae (lambda Arae) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of λ Arae from the Sun and relative movement

λ Arae is distant 71.30 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

21.87 pc
71.30 ly
4 km/s
0.078 arcsec/year
-0.176 arcsec/year

Spectral properties of λ Arae

λ Arae belongs to spectral class F3 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Alternative designations of λ Arae

λ Arae
(lambda Arae)
Gl 686.2