A weak meteor shower, active August 3–25. Maximum (ZHR 5) occurs around August 17 from a radiant at RA 19h 04m, dec. +59°. The Kappa Cygnids are reputedly rich in fireballs.
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。