σ Arae (sigma Arae)

Below the horizon. Never rises today

Alt: -79.39° Az: 67.76° Direction: East-North-East

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.

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);

Celestial Coordinates

Apparent

Right Ascension 17h 37m 30s

Declination -46° 31’ 10”

Hour Angle 12h 57m 21s

Sidereal Time 06h 34m 52s

J2000

Right Ascension 17h 35m 39s

Declination -46° 30’ 20”

Galactic Coordinates

Galactic Longitude 343.98°

Galactic Latitude -7.58°

Finder Chart

Simplified finder chart for σ Arae (sigma Arae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.59

Class Hypergiant

Absolute magnitude -0.77

Spectral Type A0V

Color Index (B-V) -0.03

Temperature 10516K

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

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

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 118.20

Distance (light year) 385.34

Radial Speed 4 km/s

Proper Motion RA -0.028 arcsec/y

Proper Motion Dec -0.035"/y

Alternative Designations

Bayer designation σ Arae
(sigma Arae)

Flamsteed designation 1 Arae

Henry Draper Catalogue HD159217

SAO Catalogue SAO228162

Hipparcos Catalogue HIP86092

Durchmusterung Catalogue CD-4611661

Visibility from Your Location

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

Set Location

Other stars in Ara