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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:07 
Transit: 12:56 
Sunset: 20:45
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All Constellations » Ara » 

η Arae (eta Arae)

Below the horizon.  Never rises today
Alt: -50.85°   Az: 129.70°   Direction: South-East

η Arae is a double giant star of spectral class K5 in the constellation of Ara.

η Arae visual magnitude is 3.76. Because of its moderate brightness, η Arae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of η Arae (eta Arae) star
DSS2 image of η Arae. The red arrow shows the motion of η Arae during the next 10000 years (6.33 arcmin in Right Ascension and -4.67 arcmin in declination);

Celestial Coordinates

Apparent

16h 51m 59s
-59° 05’ 00”
16h 43m 54s
09h 35m 53s

J2000

16h 49m 47s
-59° 02’ 29”

Galactic Coordinates

329.64°
-9.16°

Finder Chart

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Finder chart for η Arae (eta Arae).

Magnitude, Color, Spectral Class

3.76
Giant

-1.15
K5III
3691K

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

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

Star System Properties

η Arae 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 η Arae double sysyem:

3.76
13.26
9.5
23.6 arcsec

Distance, Radial Speed, Proper Motion

η Arae is distant 313.16 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

96.06
313.16
9 km/s
0.038 arcsec/y
-0.028"/y

Alternative Designations

η Arae
(eta Arae)
SAO244168
SAO244168

Visibility from Your Location

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