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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:45  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
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All Constellations » Tucana » 

ι Tucanae (iota Tucanae)

Altitude: -37.2°   Azimuth: 145.4°   Direction: South-East

ι Tucanae is a giant star in the constellation of Tucana.

ι Tucanae visual magnitude is 5.37. Because of its reltive faintness, ι Tucanae 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 Tucanae:


ι Tucanae (iota Tucanae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -37.2°
Azimuth: 145.4°
Direction: South-East

Celestial coordinates and finder chart of ι Tucanae

ι Tucanae 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 ι Tucanae are provided in the following table:

01h 07m 18s
-61° 46’ 31”

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

Finder chart ι Tucanae (iota Tucanae) star
Simplified finder chart for ι Tucanae (iota Tucanae).

Visibility of ι Tucanae from your location

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

ι Tucanae (iota Tucanae) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of ι Tucanae

The image below is a photograph of ι Tucanae 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 Tucanae is 0.073 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ι Tucanae (iota Tucanae) star
DSS2 image of ι Tucanae. The red arrow shows the motion of ι Tucanae during the next 10000 years (12.17 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of ι Tucanae from the Sun and relative movement

ι Tucanae is distant 279.11 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

85.62 pc
279.11 ly
-8 km/s
0.073 arcsec/year
-0.012 arcsec/year

Spectral properties of ι Tucanae

ι Tucanae belongs to spectral class G5 and has a luminosity class of III corresponding to a giant star.


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

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

Alternative designations of ι Tucanae

ι Tucanae
(iota Tucanae)