ζ Crucis (zeta Crucis)

Below the horizon. Never rises today

Alt: -25.63° Az: 178.98° Direction: South

ζ Crucis is a double main-sequence star of spectral class B2 in the constellation of Crux.

ζ Crucis visual magnitude is 4.04. Because of its moderate brightness, ζ Crucis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of ζ Crucis. The red arrow shows the motion of ζ Crucis during the next 10000 years (-8.33 arcmin in Right Ascension and -1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 19m 47s

Declination -64° 08’ 25”

Hour Angle 23h 51m 32s

Sideral Time 12h 11m 20s

J2000

Right Ascension 12h 18m 26s

Declination -64° 00’ 11”

Galactic Coordinates

Galactic Longitude 299.33°

Galactic Latitude -1.36°

Finder Chart

Simplified finder chart for ζ Crucis (zeta Crucis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.04

Class Main-sequence

Absolute magnitude -1.18

Spectral Type B2V

Color Index (B-V) -0.17

Temperature 12902K

The red dot in the diagram below shows where ζ Crucis is situated in the Hertzsprung–Russell diagram.

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

Star System Properties

ζ Crucis 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 ζ Crucis double sysyem:

Main star magnitude 4.04

Secondary star magnitude 13.04

Magnitude difference 9

Separation 33.8 arcsec

Distance, Radial Speed, Proper Motion

ζ Crucis is distant 361.02 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

Distance (parsec) 110.74

Distance (light year) 361.02

Radial Speed 16 km/s

Proper Motion RA -0.05 arcsec/y

Proper Motion Dec -0.01"/y

Alternative Designations

Bayer designation ζ Crucis
(zeta Crucis)

Henry Draper Catalogue HD106983

SAO Catalogue SAO251841

Hipparcos Catalogue HIP60009

Durchmusterung Catalogue CP-63 2235

Visibility from Your Location

ζ Crucis (zeta Crucis) is currently not visible from Greenwich, UK

Set Location

Other stars in Crux