File:The Double Cluster in Perseus.jpg
来自Wikimedia Commons
跳转到导航
跳转到搜索
本预览的尺寸:686 × 600像素。 其他分辨率:275 × 240像素 | 549 × 480像素 | 878 × 768像素 | 1,171 × 1,024像素 | 1,576 × 1,378像素。
原始文件 (1,576 × 1,378像素,文件大小:825 KB,MIME类型:image/jpeg)
文件信息
结构化数据
说明
摘要
[编辑]描述The Double Cluster in Perseus.jpg |
English: The famous Double Cluster in the constellation of Perseus consists of the star clusters h and chi Persei, which lie some 7100 and 7400 light-years away from Earth, respectively, and appear very close to each other on the sky. These open clusters formed relatively recently in astronomical terms and move together through space, approaching us at a speed of roughly 80 000 kilometres per hour. They are both part of the so-called Perseus OB1 association, an assembly of extremely massive stars. The western component of the pair, h Persei, entry 689 in the New General Catalogue (NGC 689), is about 5.6 million years old, while Chi Persei (NGC 884) is closer to 3.6 million years old. Easy to spot in the northern winter sky between the constellations of Perseus and Cassiopeia, the Double Cluster is a favourite of amateur astronomers. The clusters are dominated by bright blue stars and, speckled with a few fine orange stars, make a spectacular sight in the night sky, especially through binoculars. |
日期 | |
来源 | ESO |
作者 | ESO/S. Brunier |
许可协议
[编辑]This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
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 | 2009年8月27日 (四) 14:12 | 1,576 × 1,378(825 KB) | Originalwana(留言 | 贡献) | {{Information |Description={{en|1=The famous Double Cluster in the constellation of Perseus consists of the star clusters h and chi Persei, which lie some 7100 and 7400 light-years away from Earth, respectively, and appear very close to each other |
您不可以覆盖此文件。
文件用途
以下页面使用本文件:
全域文件用途
以下其他wiki使用此文件:
- en.wikipedia.org上的用途
- es.wikipedia.org上的用途
- hu.wikipedia.org上的用途
- kk.wikipedia.org上的用途
- ko.wikipedia.org上的用途
- no.wikipedia.org上的用途
- ru.wikipedia.org上的用途
- zh.wikipedia.org上的用途
元数据
此文件含有额外信息,这些信息可能是创建或数字化该文件时使用的数码相机或扫描仪所添加的。如果文件已从其原始状态修改,某些详细信息可能无法完全反映修改后的文件。
_error | 0 |
---|