A Close Look at Our Closest Neighbor - High Resolution Spectroscopy of Alpha-Centauri

Details A Close Look at Our Closest Neighbor - High Resolution Spectroscopy of Alpha-Centauri A Close Look at Our Closest Neighbor - High Resolution Spectroscopy of Alpha-Centauri

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984msngr..36...22s&link_type=abstract

The Messenger, No. 36, P.22, 1984

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As most astronomers will tell you, most of the telescopes are in the northern hemisphere, and most of the interesting objects are in the south. The Magellanic Clouds, the largest globular clusters, and the center of our Galaxy are among the celestial objects that must be studied fram south of the equator. Also in the deep south are the Sun's nearest neighbors - the a Centauri system. It contains three stars: (1) a Cen A has the same spectral type as the Sun, although it is slightly more massive; (2) a Cen B is a little less massive than the Sun and orbits a Cen A with aperiod of 80 years; and (3) Proxima Cen is a very low mass star that is slightly closer to us than either of the other two. Praxima Cen is moving through space in the same direction and at the same rate as a Cen A and B, but is very distant from them.

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