In addition, spectroscopic observations with ground-based telescopes further reveal that one of the stars is actually a tight binary that is too compact to be resolved even by Hubble.

另外，地面望远镜的分光镜观察结果进一步揭示出它们其中的一颗恒星实际上是一对紧密的双星组成的，它们距离太近以至于哈勃望远镜不能区分出来。

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Furthermore, binary sets are an efficient and compact alternative to histograms, and their performance suffices as a first pass query.

此外，二进制集是直方图的一种有效而简捷的替代方法，其检索性能足以满足第一遍查询。

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Part of a binary star system, the compact White Dwarf gradually captured material from its companion star.

作为一个双星系统的一部分，这颗致密的白矮星慢慢地从它的伴星上吸积物质。

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