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β Trianguli Australis (beta Trianguli Australis)

Below the horizon. Never rises today

Alt: -58.84° Az: 134.39° Direction: South-East

β Trianguli Australis is a double giant star of spectral class F2 in the constellation of Triangulum Australe.

β Trianguli Australis visual magnitude is 2.85. Because of its brightness, β Trianguli Australis is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of β Trianguli Australis (beta Trianguli Australis) star

DSS2 image of β Trianguli Australis. The red arrow shows the motion of β Trianguli Australis during the next 1000 years (-3.18 arcmin in Right Ascension and -6.63 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 57m 21s

Declination -63° 30’ 05”

Hour Angle 15h 43m 52s

Sidereal Time 07h 41m 14s

J2000

Right Ascension 15h 55m 08s

Declination -63° 25’ 50”

Galactic Coordinates

Galactic Longitude 321.85°

Galactic Latitude -7.52°

Finder Chart

Simplified finder chart for β Trianguli Australis (beta Trianguli Australis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 2.85

Class Giant

Absolute magnitude 2.40

Spectral Type F2III

Color Index (B-V) 0.29

Temperature 7526K

The red dot in the diagram below shows where β Trianguli Australis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of β Trianguli Australis. Attribution: Richard Powell / CC BY-SA

Star System Properties

β Trianguli Australis 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 β Trianguli Australis double sysyem:

Main star magnitude 2.85

Secondary star magnitude 13.85

Magnitude difference 11

Separation 155 arcsec

Distance, Radial Speed, Proper Motion

β Trianguli Australis is distant 40.13 light years from the Sun

Distance (parsec) 12.31

Distance (light year) 40.13

Proper Motion RA -0.191 arcsec/y

Proper Motion Dec -0.398"/y

Alternative Designations

Bayer designation β Trianguli Australis
(beta Trianguli Australis)

Henry Draper Catalogue HD141891

SAO Catalogue SAO253346

Hipparcos Catalogue HIP77952

Durchmusterung Catalogue CP-63 3723

Gliese Catalogue Gl 601 A

FK5 Catalogue 589

Visibility from Your Location

β Trianguli Australis (beta Trianguli Australis) is currently not visible from Greenwich, UK

Set Location

Other stars in Triangulum Australe