A coordinate that gives the position of an object around the ecliptic as it would be seen from the centre of the Sun. It is measured in degrees from 0° to 360° clockwise along the ecliptic, starting at the vernal equinox.
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。