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🌎  Greenwich, United Kingdom [change]

β Trianguli Australis (beta Trianguli Australis)

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

β Trianguli Australis visual magnitude is 2.85. Thanks to its high brightness, β Trianguli Australis is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.

The table below summarizes the key facts about β Trianguli Australis:

2.85
Giant
β Trianguli Australis (beta Trianguli Australis) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of β Trianguli Australis

β Trianguli Australis is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of β Trianguli Australis are provided in the following table:

15h 55m 08s
-63° 25’ 50”
321.85°
-7.52°
Triangulum Australe

The simplified sky map below shows the position of β Trianguli Australis in the sky:

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

Visibility of β Trianguli Australis from your location

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

β Trianguli Australis (beta Trianguli Australis) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of β Trianguli Australis

The image below is a photograph of β Trianguli Australis 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 β Trianguli Australis is -0.191 arcsec per year in Right Ascension and -0.398 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

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);

Distance of β Trianguli Australis from the Sun and relative movement

β Trianguli Australis is distant 40.13 light years from the Sun

12.31 pc
40.13 ly
-0.191 arcsec/year
-0.398 arcsec/year

Spectral properties of β Trianguli Australis

β Trianguli Australis belongs to spectral class F2 and has a luminosity class of III corresponding to a giant star.

2.40
F2III
7526K

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

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

β Trianguli Australis 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:

2.85
13.85
11
155 arcsec

Alternative designations of β Trianguli Australis

β Trianguli Australis
(beta Trianguli Australis)
SAO253346
SAO253346
Gl 601 A