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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
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
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All Constellations » Tucana » 

κ Tucanae (kappa Tucanae)

Altitude: -69.4°   Azimuth: 156.2°   Direction: South-South-East

κ Tucanae is a variable and multiple sub-giant star in the constellation of Tucana.

κ Tucanae visual magnitude is 4.86. Because of its moderate brightness, κ Tucanae should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of κ Tucanae is 0.399 arcsec per year in Right Ascension and 0.107 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of κ Tucanae (kappa Tucanae) star
DSS2 image of κ Tucanae. The red arrow shows the motion of κ Tucanae during the next 1000 years (6.65 arcmin in Right Ascension and 1.78 arcmin in declination);

Key facts about κ Tucanae


κ Tucanae (kappa Tucanae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -69.4°
Azimuth: 156.2°
Direction: South-South-East

Celestial coordinates and finder chart of κ Tucanae

κ 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 κ Tucanae are provided in the following table:

01h 15m 46s
-68° 52’ 33”

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

Finder chart κ Tucanae (kappa Tucanae) star
Simplified finder chart for κ Tucanae (kappa Tucanae).

Visibility of κ Tucanae from your location

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

κ Tucanae (kappa Tucanae) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of κ Tucanae from the Sun and relative movement

κ Tucanae is distant 66.61 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

20.43 pc
66.61 ly
9 km/s
0.399 arcsec/year
0.107 arcsec/year

Spectral properties of κ Tucanae

κ Tucanae belongs to spectral class F6 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

κ Tucanae star system properties

κ Tucanae 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 κ Tucanae double sysyem:

5.2 arcsec

Alternative designations of κ Tucanae

κ Tucanae
(kappa Tucanae)
Gl 55.3A