Dusk: The start of the astronomical twilight. The time of the first sunlights, from this moment the sky becomes lighter! During nautical twilight the illumination is such that the horizon is still visible and vague outlines of ground objects may be distinguishable, but not details. Civil twilight can also be described as the limit at which twilight illumination is sufficient, under clear weather conditions. At the beginning of morning civil twilight, or end of evening civil twilight, the horizon is clearly defined. Sunrise: The sun rises and the geometric center of the sun is on the horizon. Sunset: The sun sets and the geometric center of the sun is on the horizon. Dark: the astronomical twilight, the evening twilight ends and night begins. There is no color in the sky during astronomical twilight.
破壁机和榨汁机哪个榨果汁 Sunrise Sunset
版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容， 请发送邮件至lsinopec@gmail.com举报，一经查实，本站将立刻删除。