Acrux

Chemical makeup: H, He

Location:

Classification: B8 la

Spectral analysis:

                       

http://www.sydneyobservatory.com.au/author/nick-lomb/page/96/

http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1981ApJ...248.1031B&db_key=AST&page_ind=2&data_type=GIF&type=SCREEN_VIEW&classic=YES