The reflectance spectra of five near-Earth asteroids, one Mars crosser, and four classical asteroids of the main belt in the range 0.35–0.95 µm have been observed, calculated, and analyzed. Asteroids with a magnitude up to 17 were observed in 2013–2017 with a 2-m telescope with a CCD spectrograph with extremely low spectral resolution (R ∼ 100) of the Terskol Observatory of the Institute of Astronomy of the Russian Academy of Sciences in order to determine their taxonomic types and composition. These results show that the composition of some of the studied near-Earth asteroids is heterogeneous judging by the variations in their reflectance spectra within adjacent taxonomic classes. It is notable that some of these asteroids are binary. The physical and chemical-mineralogical interpretation of reflectance spectra is presented.

中文翻译：

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近地小行星和主带小行星的分光光度研究

已经观测，计算和分析了主带中的五个近地小行星，一个火星穿越者和四个经典小行星的反射光谱，范围为0.35-0.95 µm。在2013-2017年期间，使用带有CCD光谱仪的2-m望远镜以极低的光谱分辨率观察到了小至17级的小行星（R〜100）俄罗斯科学院天文学研究所Terskol天文台，以确定它们的分类学类型和组成。这些结果表明，根据相邻分类学类别中反射光谱的变化，某些已研究的近地小行星的组成是异质的。值得注意的是，其中一些小行星是二元的。介绍了反射光谱的物理和化学矿物学解释。