请输入您要查询的字词:

 

单词 A-type asteroid
释义
A-type asteroid

Astronomy
  • A rare type of asteroid that has both a moderately high albedo (0.13–0.35) and an extremely reddish spectrum at wavelengths shorter than 0.7 μm‎. Strong absorption in the near-infrared is interpreted as indicating the presence of the mineral olivine. Examples include (246) Asporina, diameter 60 km, and (446) Aeternitas, diameter 45 km.


随便看

 

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。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/12/25 13:56:17