File:Earths orbit and ecliptic.PNG

原始文件(906 × 926像素,文件大小:46 KB,MIME类型:image/png


摘要

描述 Diagram of Earth's orbit, showing ecliptic plane and the celestial equator on the celestial sphere.
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来源 自己的作品
作者 Tfr000 (talk) 01:59, 15 March 2012 (UTC)


此astronomical map图片可使用矢量图形重新创建为SVG文件。这具有很多好处;更多信息请参见共享资源:待清理媒体。如果存在此图片的SVG格式,请将其上传,然后将此模板替换为{{vector version available|新图片名称}}


建议您将SVG命名为“Earths orbit and ecliptic.svg”,这样在使用Vector version available(或Vva)模板时就不需要填写新图片名称参数。

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I’m not an expert (I came here to see what “ecliptic” meant), but based upon the article (e.g., “The ecliptic is the apparent path of the Sun on the celestial sphere” and “The ecliptic is the path the Sun appears to trace through the stars”), it appears to me that the error in this picture is that they’re showing a small depiction of the “earth revolves around the sun” viewpoint within the “sun revolves around the earth” viewpoint. The former should be removed and the sun should be shown to be on the “great circle,” the circle on which (per the “sun revolves around the earth” viewpoint) the Sun appears to move as it “orbits the Earth.” Trying to illustrate two conflicting ideas in a drawing presented as representing one of those two ideas is counter-productive to the use of a drawing to help clarify the point.

I would add that it’s not clear to say that “The ecliptic is the apparent path of the Sun on the celestial sphere.” That’s only the apparent path if your presumption is that the earth and stars are stationary and the sun is revolving around the earth. It’s been quite a while since that was the first thought that entered one’s mind as the explanation for the sun’s movement across the sky, so that isn’t a description that quickly conveys the desired idea to the modern reader. Given that I'm not an expert on the subject and might be missing something, however, I hesitate to just jump in and edit someone else's article. I'm just adding comments that may help others figure this out in less time.

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当前2012年3月19日 (一) 14:062012年3月19日 (一) 14:06版本的缩略图906 × 926(46 KB)Tfr000{{Information |Description=Diagram of Earth's orbit, showing ecliptic plane, ecliptic poles, celestial equator, and celestial poles on the celestial sphere |Date=19 Mar 2012 |Source={{own}} |Author= ~~~~ }}
2012年3月15日 (四) 01:562012年3月15日 (四) 01:56版本的缩略图882 × 891(42 KB)Tfr000Diagram of Earth's orbit, showing ecliptic plane and celestial equator on the celestial sphere

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