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关于镧族元素在太阳和其他星体中的丰度知道的很少。阿勒尔(Aller,1961,1962,1967)曾测定的太阳大气中的比值是:5.7Y原子/10~6Si原子和1.1Yb原子/10~6Si原子。稍后,他又发表了较高的丰度比值:50Y原子
Little is known about the abundance of lanthanide elements in the sun and other stars. The ratios in the solar atmosphere determined by Aller (1961, 1962, 1967) are: 5.7Y atoms / 10 ~ 6Si atoms and 1.1Yb atoms / 10 ~ 6Si atoms. Later, he published a higher abundance ratio: 50Y atoms