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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: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
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All Constellations » Tucana » 

β2 Tucanae (beta2 Tucanae)

Altitude: -36.5°   Azimuth: 148.1°   Direction: South-South-East

β2 Tucanae is a multiple main-sequence star in the constellation of Tucana.

β2 Tucanae visual magnitude is 4.54. Because of its moderate brightness, β2 Tucanae should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of β2 Tucanae is 0.101 arcsec per year in Right Ascension and -0.056 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of β2 Tucanae (beta2 Tucanae) star
DSS2 image of β2 Tucanae. The red arrow shows the motion of β2 Tucanae during the next 1000 years (1.68 arcmin in Right Ascension and -0.93 arcmin in declination);

Key facts about β2 Tucanae


β2 Tucanae (beta2 Tucanae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -36.5°
Azimuth: 148.1°
Direction: South-South-East

Celestial coordinates and finder chart of β2 Tucanae

β2 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 β2 Tucanae are provided in the following table:

00h 31m 33s
-62° 57’ 56”

The simplified sky map below shows the position of β2 Tucanae in the sky:

Finder chart β2 Tucanae (beta2 Tucanae) star
Simplified finder chart for β2 Tucanae (beta2 Tucanae).

Visibility of β2 Tucanae from your location

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

β2 Tucanae (beta2 Tucanae) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of β2 Tucanae from the Sun and relative movement

β2 Tucanae is distant 172.03 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

52.77 pc
172.03 ly
10 km/s
0.101 arcsec/year
-0.056 arcsec/year

Spectral properties of β2 Tucanae

β2 Tucanae belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where β2 Tucanae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of β2 Tucanae. Attribution: Richard Powell / CC BY-SA

β2 Tucanae star system properties

β2 Tucanae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the β2 Tucanae double sysyem:

27 arcsec

Alternative designations of β2 Tucanae

β2 Tucanae
(beta2 Tucanae)