File:Lunar eclipse chart-1989Feb20.png

Lunar_eclipse_chart-1989Feb20.png(416 × 230 像素,檔案大小:9 KB,MIME 類型:image/png


摘要

描述
English: February 1989 lunar eclipse chart

The position of the moon (and earth's shadow) are shown as viewed from center of earth. A small parallax effect occurs from specific location on surface of the earth.

The yellow line is the plane of the ecliptic (path of the sun through the sky, and hence the center of the earth's shadow)

The two concentric circles centered on this line show the extent of the umbra and penumbra, the zones of full and partial shadow, respectively, for an object in the moon's orbit.

The moon is drawn at maximum eclipse, and circles for every hour interval of motion.

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日期 2009年四月11日 (原始上傳日期)
來源 自己的作品
Transferred from en.wikipedia
作者 SockPuppetForTomruen at en.wikipedia

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The original description page was here. All following user names refer to en.wikipedia.
  • 2009-04-11 05:51 SockPuppetForTomruen 679×493 (10778 bytes) == Summary == [[February 1989 lunar eclipse]] chart The position of the moon (and earth's shadow) are shown as viewed from center of earth. A small parallax effect occurs from specific location on surface of the earth. The yellow line is the plane of t
  • 2009-04-15 01:48 SockPuppetForTomruen 416×230 (9000 bytes) replace

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