About ACKER A
About Observatoire de Strasbourg, FRA
About GLEIZES F
About Univ. Sciences et Techniques du Languedoc, Montpellier, FRA
About TYLENDA R
About Copernicus Astronomical Center, Torun, POL
About STENHOLM B
About Lund Observatory, SWE
About Annales de Physique
About white dwarf
About planetary nebula
About Fixed stars
About 光度
About 惑星状星雲
About 核