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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
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
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All Constellations » Ara » 

ε2 Arae (epsilon2 Arae)

Altitude: -74.9°   Azimuth: 253.6°   Direction: West-South-West

ε2 Arae is a double main-sequence star in the constellation of Ara.

ε2 Arae visual magnitude is 5.29. Because of its reltive faintness, ε2 Arae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about ε2 Arae:


ε2 Arae (epsilon2 Arae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -74.9°
Azimuth: 253.6°
Direction: West-South-West

Celestial coordinates and finder chart of ε2 Arae

ε2 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 ε2 Arae are provided in the following table:

17h 03m 08s
-53° 14’ 12”

The simplified sky map below shows the position of ε2 Arae in the sky:

Finder chart ε2 Arae (epsilon2 Arae) star
Simplified finder chart for ε2 Arae (epsilon2 Arae).

Visibility of ε2 Arae from your location

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

ε2 Arae (epsilon2 Arae) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of ε2 Arae

The image below is a photograph of ε2 Arae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of ε2 Arae is -0.003 arcsec per year in Right Ascension and -0.144 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ε2 Arae (epsilon2 Arae) star
DSS2 image of ε2 Arae. The red arrow shows the motion of ε2 Arae during the next 1000 years (-0.05 arcmin in Right Ascension and -2.40 arcmin in declination);

Distance of ε2 Arae from the Sun and relative movement

ε2 Arae is distant 85.86 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

26.34 pc
85.86 ly
7 km/s
-0.003 arcsec/year
-0.144 arcsec/year

Spectral properties of ε2 Arae

ε2 Arae belongs to spectral class F6 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where ε2 Arae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ε2 Arae. Attribution: Richard Powell / CC BY-SA

ε2 Arae star system properties

ε2 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 ε2 Arae double sysyem:

25 arcsec

Alternative designations of ε2 Arae

ε2 Arae
(epsilon2 Arae)