A planetary nebula in Perseus, also known as M76 or NGC 650–1. It is a smaller and fainter version of the Dumbbell Nebula in Vulpecula and, at 12th magnitude, is the faintest Messier object. It lies about 3500 l.y. away.
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。