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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: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Sculptor » 

τ Sculptoris (tau Sculptoris)

Altitude: -11.3°   Azimuth: 235.6°   Direction: South-West

τ Sculptoris is a double main-sequence star in the constellation of Sculptor.

τ Sculptoris visual magnitude is 5.69. Because of its reltive faintness, τ Sculptoris 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 τ Sculptoris:


τ Sculptoris (tau Sculptoris) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -11.3°
Azimuth: 235.6°
Direction: South-West

Celestial coordinates and finder chart of τ Sculptoris

τ Sculptoris 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 τ Sculptoris are provided in the following table:

01h 36m 08s
-29° 54’ 26”

The simplified sky map below shows the position of τ Sculptoris in the sky:

Finder chart τ Sculptoris (tau Sculptoris) star
Simplified finder chart for τ Sculptoris (tau Sculptoris).

Visibility of τ Sculptoris from your location

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

Today's τ Sculptoris (tau Sculptoris) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 119.9°
Max altitude: 8.6°
Azimuth: 240.1°

Digitized Sky Survey image of τ Sculptoris

The image below is a photograph of τ Sculptoris 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 τ Sculptoris is 0.1 arcsec per year in Right Ascension and 0.04 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of τ Sculptoris (tau Sculptoris) star
DSS2 image of τ Sculptoris. The red arrow shows the motion of τ Sculptoris during the next 1000 years (1.67 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of τ Sculptoris from the Sun and relative movement

τ Sculptoris is distant 202.11 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

62.00 pc
202.11 ly
5 km/s
0.1 arcsec/year
0.04 arcsec/year

Spectral properties of τ Sculptoris

τ Sculptoris belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where τ Sculptoris is situated in the Hertzsprung–Russell diagram.

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

τ Sculptoris star system properties

τ Sculptoris is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the τ Sculptoris double sysyem:

0.9 arcsec

Alternative designations of τ Sculptoris

τ Sculptoris
(tau Sculptoris)