本文对有射电子源结构类星体的红移、视星等关系进行了统计研究。
In this paper a statistical investigation has been made on the redshift-magnitude relation of quasars with radio components structure.
计算了共58颗红团簇巨星在I、K波段的绝对星等，讨论了它们与恒星铁丰度之间的关系。
The absolute magnitudes in I and K bands of 58 red clump giants are computed and the relation between them and the metallicity are also showed.
简单来说，赫罗图把大量恒星的绝对星等和表面温度或谱型关系以图表方式显示出来。
The hertzsprung - russell diagram serves this purpose . it is a plot of absolute magnitude against surface temperature i . e . , spectral type of stars.
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