原始文件 (1,449 × 2,000像素,文件大小:643 KB,MIME类型:image/jpeg


描述 This is an artist's concept of a comet dust trail and dust tail. The trail can only be seen in the light of radiated heat. The dust trail is made of particles that are the size of sand grains and pebbles. They are large enough that they are not affected much by the Sun's light and solar wind. The dust tail, on the other hand, is made of grains the size of cigarette-smoke particles. These grains are blown out of the dust coma near the comet nucleus by the Sun's light.
来源

NASA:

作者 NASA Ames Research Center/K. Jobse, P. Jenniskens
授权
(二次使用本文件)
Images of NASA are within the public domain if not specifically noted otherwise


Public domain 本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zhNASA版权方针页面JPL图片使用方针。)
警告:

说明

添加一行文字以描述该文件所表现的内容

此文件中描述的项目

描繪內容

image/jpeg

9feeae58cf7dad11a7dee09a41e5a933d08420d4

658,141 字节

2,000 像素

1,449 像素

文件历史

点击某个日期/时间查看对应时刻的文件。

日期/时间缩⁠略⁠图大小用户备注
当前2006年1月31日 (二) 01:222006年1月31日 (二) 01:22版本的缩略图1,449 × 2,000(643 KB)Arnomane{{Information| | Description = This is an artist's concept of a comet dust trail and dust tail. The trail can only be seen in the light of radiated heat. The dust trail is made of particles that are the size of sand grains and pebbles. They are large enou

以下3个页面使用本文件:

全域文件用途

以下其他wiki使用此文件:

元数据