File:Hubble's Last Look at Comet ISON Before Perihelion.jpg
原始文件 (3,925 × 3,912像素,文件大小:6.39 MB,MIME类型:image/jpeg)
说明
摘要[编辑]
描述Hubble's Last Look at Comet ISON Before Perihelion.jpg |
English: As of mid-November, ISON is officially upon us. Hubble has taken its closest look yet at the innermost region of the comet, where geysers of sublimating ice are fueling a spectacular tail.
Made from observations on 2 November 2013, the image combines pictures of ISON taken through blue and red filters. The round coma around ISON's nucleus is blue and the tail has a redder hue. Ice and gas in the coma reflect blue light from the Sun, while dust grains in the tail reflect more red light than blue light. This is the most colour separation seen so far in ISON and the comet, nearer than ever to the Sun, is brighter and more structured than ever before. Comet ISON will come closest to the Sun on November 28, a point in its orbit known as perihelion. Comet ISON was fairly quiet until 1 November 2013, when it experienced an outburst that doubled the amount of gas the comet emitted. After this image was taken, a second outburst shook the comet, increasing its activity by a factor of ten. Over the past couple of nights, the comet has stabilised at its new level of activity. It is now bright enough to be seen with a good pair of binoculars from a dark site, in the morning skies towards the East.
|
日期 | |
来源 | http://www.spacetelescope.org/images/opo1347a/ |
作者 | NASA, ESA, and the Hubble Heritage Team (STScI/AURA) |
许可协议[编辑]
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
Notes:
|
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 | 2013年11月20日 (三) 01:13 | 3,925 × 3,912(6.39 MB) | Jmencisom(留言 | 贡献) | User created page with UploadWizard |
您不可以覆盖此文件。
文件用途
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:
- en.wikipedia.org上的用途
- en.wiktionary.org上的用途
- es.wikipedia.org上的用途
- eu.wikipedia.org上的用途
- gl.wikipedia.org上的用途
- gom.wikipedia.org上的用途
- he.wiktionary.org上的用途
- hy.wikipedia.org上的用途
- incubator.wikimedia.org上的用途
- ko.wikipedia.org上的用途
- ml.wikipedia.org上的用途
- nds.wikipedia.org上的用途
- pt.wikipedia.org上的用途
- sl.wikipedia.org上的用途
- ta.wikipedia.org上的用途
- tr.wikipedia.org上的用途
- vi.wikibooks.org上的用途
- zh.wikipedia.org上的用途
- zh.wiktionary.org上的用途
元数据
此文件中包含有额外的信息。这些信息可能是由数码相机或扫描仪在创建或数字化过程中所添加。
如果文件已从其原始状态修改,某些细节可能无法完全反映修改后的文件。
图像标题 |
|
---|---|
来源 | ESA/Hubble |
提供人 | NASA, ESA, and the Hubble Heritage Team (STScI/AURA) |
简称 |
|
使用条款 |
|
数据生成日期时间 | 2013年11月19日 (二) 14:57 |
使用软件 | Adobe Photoshop CS6 (Macintosh) |
原始文件唯一ID | xmp.did:CB23140D652768118083BAA084F4F5B8 |
关键词 |
|
联系信息 |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |