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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Eridanus » 

τ6 Eridani (tau6 Eridani)

Altitude: 9.7°   Azimuth: 211.0°   Direction: South-South-West

τ6 Eridani is a giant star in the constellation of Eridanus.

τ6 Eridani visual magnitude is 4.23. Because of its moderate brightness, τ6 Eridani 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 τ6 Eridani is -0.158 arcsec per year in Right Ascension and -0.529 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of τ6 Eridani (tau6 Eridani) star
DSS2 image of τ6 Eridani. The red arrow shows the motion of τ6 Eridani during the next 1000 years (-2.63 arcmin in Right Ascension and -8.82 arcmin in declination);

Key facts about τ6 Eridani


τ6 Eridani (tau6 Eridani) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 9.7°
Azimuth: 211.0°
Direction: South-South-West

Celestial coordinates and finder chart of τ6 Eridani

τ6 Eridani is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of τ6 Eridani are provided in the following table:

03h 46m 50s
-23° 14’ 58”

The simplified sky map below shows the position of τ6 Eridani in the sky:

Finder chart τ6 Eridani (tau6 Eridani) star
Simplified finder chart for τ6 Eridani (tau6 Eridani).

Visibility of τ6 Eridani 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 τ6 Eridani (tau6 Eridani) 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: 113.2°
Max altitude: 15.3°
Azimuth: 246.8°

Distance of τ6 Eridani from the Sun and relative movement

τ6 Eridani is distant 58.43 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

17.92 pc
58.43 ly
7 km/s
-0.158 arcsec/year
-0.529 arcsec/year

Spectral properties of τ6 Eridani

τ6 Eridani belongs to spectral class F3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where τ6 Eridani is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of τ6 Eridani. Attribution: Richard Powell / CC BY-SA

Alternative designations of τ6 Eridani

τ6 Eridani
(tau6 Eridani)