A large triangle in the northern sky formed by the first-magnitude stars Vega, Altair, and Deneb. It is best seen during northern summer and autumn evenings. A more neutral term is Northern Triangle.
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。