Theta2 Crucis

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θ² Crucis (θ² Cru / Theta² Crucis) is a spectroscopic binary star in the constellation Crux. It has a mean apparent magnitude of +4.72^m. Since the star is a β Cephei-type variable star, the value is not fixed but varies slightly between +4.70^m and +4.74^m. The period is 0.0889 days. The star is classified as a blue-white subgiant (spectral class B2 IV). θ² Crucis is located at about 750 light-years from the Sun.

[edit] References

• SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved on January 4, 2007.
• Samus, N. N.; Durlevich, O. V.; et al. (2004). Combined General Catalogue of Variable Stars (GCVS4.2). Retrieved on January 4, 2007.