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public LocationGreenwich, UK
Sunrise: 5:00 
Transit: 13:04 
Sunset: 21:07
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations » Cancer » 

τ Cancri (tau Cancri)

Above the horizon.  Rise: 5:35 | Tran: 14:33 | Set: 23:32
Alt: 9.64°   Az: 306.16°   Direction: North-West

τ Cancri is a giant star of spectral class G8 in the constellation of Cancer.

τ Cancri visual magnitude is 5.43. Because of its faintness, τ Cancri is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

τ Cancri is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere.

Image of τ Cancri (tau Cancri) star
DSS2 image of τ Cancri. The red arrow shows the motion of τ Cancri during the next 10000 years (-5.33 arcmin in Right Ascension and 0.33 arcmin in declination);

Celestial Coordinates


09h 09m 28s
+29° 33’ 14”
07h 35m 09s
16h 44m 37s


09h 08m 00s
+29° 39’ 15”

Galactic Coordinates


Finder Chart

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

Magnitude, Color, Spectral Class



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

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

Distance, Radial Speed, Proper Motion

τ Cancri is distant 259.55 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

79.62 pc
259.55 ly
-13 km/s
-0.032 arcsec/y
0.002 "/y

Alternative Designations

τ Cancri
(tau Cancri)

Visibility from Your Location

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

Azimuth: 60.4°
Max altitude: 68.1°
Azimuth: 299.6°