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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:13 
Transit: 12:47 
Sunset: 18:20
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All Constellations » Capricornus » 

τ Capricorni (tau Capricorni)

Below the horizon.  Rise: 15:48 | Tran: 20:28 | Set: 1:13
Alt: -17.98°   Az: 268.54°   Direction: West

τ Capricorni is a multiple giant star of spectral class B6 in the constellation of Capricornus.

τ Capricorni visual magnitude is 5.22. Because of its faintness, τ Capricorni 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.

Image of τ Capricorni (tau Capricorni) star
DSS2 image of τ Capricorni. The red arrow shows the motion of τ Capricorni during the next 10000 years (1.17 arcmin in Right Ascension and -3.67 arcmin in declination);

Celestial Coordinates

Apparent

20h 40m 39s
-14° 51’ 57”
06h 41m 18s
03h 21m 57s

J2000

20h 39m 16s
-14° 57’ 16”

Galactic Coordinates

30.94°
-30.5°

Finder Chart

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

Magnitude, Color, Spectral Class

5.22
Giant

-3.43
B6III
11920K

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

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

Star System Properties

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

5.22
5.82
0.6
0.3 arcsec

Distance, Radial Speed, Proper Motion

τ Capricorni is distant 1,752.69 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

537.63
1,752.69
-5 km/s
0.007 arcsec/y
-0.022"/y

Alternative Designations

τ Capricorni
(tau Capricorni)
14 Capricorni
SAO163771
SAO163771

Visibility from Your Location

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

Azimuth: 104.9°
Max altitude: 23.7°
Azimuth: 255.1°