τ3 Gruis (tau3 Gruis)

Below the horizon. Never rises today

Alt: -35.99° Az: 123.96° Direction: South-East

τ3 Gruis is a star of spectral class A in the constellation of Grus.

τ3 Gruis visual magnitude is 5.7. Because of its faintness, τ3 Gruis 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.

DSS2 image of τ3 Gruis. The red arrow shows the motion of τ3 Gruis during the next 10000 years (-4.67 arcmin in Right Ascension and -0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 58m 13s

Declination -47° 50’ 10”

Hour Angle 17h 55m 47s

Sidereal Time 16h 54m 01s

J2000

Right Ascension 22h 56m 47s

Declination -47° 58’ 09”

Galactic Coordinates

Galactic Longitude 342.17°

Galactic Latitude -59.49°

Finder Chart

Simplified finder chart for τ3 Gruis (tau3 Gruis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.7

Class

τ3 Gruis is also a so called metallic star.

Absolute magnitude 1.09

Spectral Type A

Color Index (B-V) 0.22

Temperature 8011K

The red dot in the diagram below shows where τ3 Gruis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of τ3 Gruis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

τ3 Gruis is distant 272.12 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

Distance (parsec) 83.47

Distance (light year) 272.12

Radial Speed 6 km/s

Proper Motion RA -0.028 arcsec/y

Proper Motion Dec -0.001"/y

Alternative Designations

Bayer designation τ3 Gruis
(tau3 Gruis)

Henry Draper Catalogue HD216823

SAO Catalogue SAO231364

Hipparcos Catalogue HIP113307

Durchmusterung Catalogue CD-4814364

FK5 Catalogue 3832

Visibility from Your Location

τ3 Gruis (tau3 Gruis) is currently not visible from Greenwich, UK

Set Location

Other stars in Grus