The star Lambda Scorpii, magnitude 1.6, a B1.5 or B2 subgiant 571 l.y. away. It is a variable Beta Cephei star, varying by about 0.05 mag. with a period of 5.1 hours.
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。