发信人: oldherl(锤子剪子布`望星空`对⑨当歌`咯噔), 信区: Astronomy
标 题: [APOD上周]代斯皮娜海王之卫
发信站: 饮水思源 (2014年01月19日00:05:14 星期天), 站内信件
Astronomy Picture Of the Day
上周回顾: 2014 年 1 月 16 日
Despina, Moon of Neptune / 代斯皮娜海王之卫
小黑点划过遥远而寒冷的海王星表面！
screen.width - 200){this.width = screen.width - 200}">
Image Credit: NASA, JPL - Processed Image Copyright: Ted Stryk
Explanation: Despina is a tiny moon of Neptune. A mere 148 kilometers across,
diminutive Despina was discovered in 1989, in images from the Voyager 2
spacecraft taken during its encounter with the solar system's most distant
gas giant planet. But looking through the Voyager 2 data 20 years later,
amateur image processor and philosophy professor Ted Stryk discovered
something no one had recognized before -- images that show the shadow of
Despina in transit across Neptune's blue cloud tops. His composite view of
Despina and its shadow is composed of four archival frames taken on August
24, 1989, separated by nine minutes. Despina itself has been artificially
brightened to make it easier to see. In ancient Greek mythology, Despina is
a daughter of Poseidon, the Roman god Neptune.
成大物理分站中文链接:
http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap140116.html
--
Every clear night is a present.
.*. 欢迎前往 望星空 Astronomy 板 .*.
※ 来源:·饮水思源 bbs.sjtu.edu.cn·[FROM: 121.21.65.112]
※ 修改:·oldherl 于 2014年01月19日00:05:23 修改标题·[FROM: 121.21.65.112]
标 题: [APOD上周]代斯皮娜海王之卫
发信站: 饮水思源 (2014年01月19日00:05:14 星期天), 站内信件
Astronomy Picture Of the Day
上周回顾: 2014 年 1 月 16 日
Despina, Moon of Neptune / 代斯皮娜海王之卫
小黑点划过遥远而寒冷的海王星表面！
screen.width - 200){this.width = screen.width - 200}">Image Credit: NASA, JPL - Processed Image Copyright: Ted Stryk
Explanation: Despina is a tiny moon of Neptune. A mere 148 kilometers across,
diminutive Despina was discovered in 1989, in images from the Voyager 2
spacecraft taken during its encounter with the solar system's most distant
gas giant planet. But looking through the Voyager 2 data 20 years later,
amateur image processor and philosophy professor Ted Stryk discovered
something no one had recognized before -- images that show the shadow of
Despina in transit across Neptune's blue cloud tops. His composite view of
Despina and its shadow is composed of four archival frames taken on August
24, 1989, separated by nine minutes. Despina itself has been artificially
brightened to make it easier to see. In ancient Greek mythology, Despina is
a daughter of Poseidon, the Roman god Neptune.
成大物理分站中文链接:
http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap140116.html
--
Every clear night is a present.
.*. 欢迎前往 望星空 Astronomy 板 .*.
※ 来源:·饮水思源 bbs.sjtu.edu.cn·[FROM: 121.21.65.112]
※ 修改:·oldherl 于 2014年01月19日00:05:23 修改标题·[FROM: 121.21.65.112]
No comments:
Post a Comment