Back تصنيف الطيف Arabic Tipu espectral AST Спектральныя класы зорак Byelorussian Спектрален клас на звездите Bulgarian Tipus espectral Catalan Spektralklasse Danish Spektralklasse German Φασματικοί τύποι αστέρων Greek Tipo espectral Spanish Spektriklass Estonian

Spectral class

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