Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
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All Constellations » Tucana » 

ε Tucanae (epsilon Tucanae)

Altitude: -40.8°   Azimuth: 212.1°   Direction: South-South-West

ε Tucanae is a sub-giant star in the constellation of Tucana.

ε Tucanae visual magnitude is 4.5. Because of its moderate brightness, ε 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 table below summarizes the key facts about ε Tucanae:


ε Tucanae (epsilon Tucanae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -40.8°
Azimuth: 212.1°
Direction: South-South-West

Celestial coordinates and finder chart of ε Tucanae

ε 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 ε Tucanae are provided in the following table:

23h 59m 54s
-65° 34’ 37”

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

Finder chart ε Tucanae (epsilon Tucanae) star
Simplified finder chart for ε Tucanae (epsilon Tucanae).

Visibility of ε Tucanae from your location

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

ε Tucanae (epsilon Tucanae) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of ε Tucanae

The image below is a photograph of ε 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 ε Tucanae is 0.048 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ε Tucanae (epsilon Tucanae) star
DSS2 image of ε Tucanae. The red arrow shows the motion of ε Tucanae during the next 10000 years (8.00 arcmin in Right Ascension and -4.00 arcmin in declination);

Distance of ε Tucanae from the Sun and relative movement

ε Tucanae is distant 374.28 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

114.81 pc
374.28 ly
11 km/s
0.048 arcsec/year
-0.024 arcsec/year

Spectral properties of ε Tucanae

ε Tucanae belongs to spectral class B9 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Alternative designations of ε Tucanae

ε Tucanae
(epsilon Tucanae)