The Sun and Alpha-Centaurus

Details The Sun and Alpha-Centaurus The Sun and Alpha-Centaurus

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984msngr..37...10f&link_type=abstract

The Messenger, No. 37, P.10, 1984

Computer Science

1

Scientific paper

The closest known star apart fram the Sun is a very faint object called Praxima Gentauri. The nextclosest star is Alpha Centauri or Rigil Kentaurus which forms a binary system having components designated as a Gen A and a Gen B. The component called a Gen A is of particular interest because it strongly resembles the Sun. As a matter of fact, it resembles the Sun to such an extent that it has been called a solar twin. Several researchers have taken a close look at a Gen A using different means in trying to find out exactly what its praperties are. Photometry of an object as bright as a Gen A with a cooler component within 18 arcsec of angular distance may suffer fram systematic errors. And analysing spectra of a Gen A is hard to do with sufficient accuracy.

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