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public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 4:42 
Transit: 12:58 
Sunset: 21:15
sunny   (Daytime)   What's Visible Now?

σ Arae (sigma Arae)

Below the horizon.  Never rises today
Altitude: -84.9°   Azimuth: 349.2°   Direction: North

σ Arae is a hypergiant star of spectral class A0 in the constellation of Ara.

σ Arae visual magnitude is 4.59. Because of its moderate brightness, σ 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.

Celestial coordinates and finder chart of σ Arae

Finder chart σ Arae (sigma Arae) star
Simplified finder chart for σ Arae (sigma Arae).

σ 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 σ Arae are provided in the following table:

17h 35m 39s
-46° 30’ 20”
343.98°
-7.58°
Ara
Image of σ Arae (sigma Arae) star
DSS2 image of σ Arae. The red arrow shows the motion of σ Arae during the next 10000 years (-4.67 arcmin in Right Ascension and -5.83 arcmin in declination);

Key facts about σ Arae

4.59
Hypergiant

and has a luminosity class of V corresponding to a hypergiant star.

-0.77
A0V
10516K

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

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

Distance of σ Arae from the Sun and relative movement

σ Arae is distant 385.34 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

118.20 pc
385.34 ly
4 km/s
-0.028 arcsec/year
-0.035 arcsec/year

Alternative designations of σ Arae

σ Arae
(sigma Arae)
SAO228162
SAO228162

Visibility of σ Arae from your location

σ Arae (sigma Arae) is currently not visible from Greenwich, United Kingdom