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🌎  Greenwich, United Kingdom [change]

ι Trianguli Australis (iota Trianguli Australis)

ι Trianguli Australis is a double sub-giant star in the constellation of Triangulum Australe.

ι Trianguli Australis visual magnitude is 5.27. Because of its reltive faintness, ι Trianguli Australis 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 ι Trianguli Australis:

5.27
Sub-giant
ι Trianguli Australis (iota Trianguli Australis) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of ι Trianguli Australis

ι 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 ι Trianguli Australis are provided in the following table:

16h 27m 57s
-64° 03’ 29”
324.06°
-10.48°
Triangulum Australe

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

Finder chart ι Trianguli Australis (iota Trianguli Australis) star
Simplified finder chart for ι Trianguli Australis (iota Trianguli Australis).

Visibility of ι Trianguli Australis from your location

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

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

Digitized Sky Survey image of ι Trianguli Australis

The image below is a photograph of ι 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 ι Trianguli Australis is 0.046 arcsec per year in Right Ascension and 0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ι Trianguli Australis (iota Trianguli Australis) star
DSS2 image of ι Trianguli Australis. The red arrow shows the motion of ι Trianguli Australis during the next 10000 years (7.67 arcmin in Right Ascension and 4.50 arcmin in declination);

Distance of ι Trianguli Australis from the Sun and relative movement

ι Trianguli Australis is distant 131.72 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

40.40 pc
131.72 ly
-5 km/s
0.046 arcsec/year
0.027 arcsec/year

Spectral properties of ι Trianguli Australis

ι Trianguli Australis belongs to spectral class F4 and has a luminosity class of IV corresponding to a sub-giant star.

2.24
F4IV
7101K

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

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

ι Trianguli Australis star system properties

ι Trianguli Australis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the ι Trianguli Australis double sysyem:

5.27
9.37
4.1
19.6 arcsec

Alternative designations of ι Trianguli Australis

ι Trianguli Australis
(iota Trianguli Australis)
SAO253555
SAO253555