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Spectral classification of the future : International Astronomical Union Colloquium 47, commemorating the 100th anniversary of the death of Angelo Secchi, S.J. / edited by M.F. McCarthy, A.G.D. Philip, G.V. Coyne.
Secchi, Angelo, 1818-1878.
Stars -- Classification -- Congresses.
Astrofisica. larpcal
McCarthy, Martin Francis.
Philip, A. G. Davis.
Coyne, G. V.
International Astronomical Union Colloquium no. 47.
Catalog