A dark nebula in Ophiuchus, with the curving shape of a pipe. It is one of the largest dark nebulae in the Milky Way, extending for several degrees. Sections of the pipe’s stem have the designations Barnard 59 and 65–7, while the bowl is Barnard 78.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。