tóng-àn:Lunation animation November 2009.gif

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Lunation_animation_November_2009.gif ‎（480 × 438 siōng-sò͘ , tóng-àn chiàm-liōng: 4.86 MB, MIME luī-hêng: image/gif, 循環, 59 畫格, 3.0秒）

Khài-iàu

Soat-bêng Lunar libration. see below for more descriptions
Ji̍t-kî (published on Commons)
Chhut-chhù Ka-tī chò--ê [1]
Chok-chiá Tomruen
其他版本 File:Lunar libration with phase Oct 2007.gif similar, Image:Lunation animation April 2007.gif (April 2007 animation, 60 frames, no phase shown)
Image:Lunar libration with phase2.gif (Nov 2005 animation)
每日媒體 本檔案當選為2015年4月11日的每日媒體。其說明如下：
English: Lunar libration
其他語言
Čeština: Měsíční librace.
English: Lunar libration
Русский: Либрация Луны.
中文（简体）：月球天平动

Siū-khoân

Public domain 我，此作品的版權所有人，釋出此作品至公共領域。此授權條款在全世界均適用。
這可能在某些國家不合法，如果是的話：
我授予任何人有權利使用此作品於任何用途，除受法律約束外，不受任何限制。

Technical

  • Book: "Astronomical Formulae for Calculators, 4th edition", Jean Meeus, 1988, published by "Willmann-Bell, Inc"
    • Chapter 30 "Position of the Moon"

Source bitmap for projection from NRL's Clementine Spacecraft:

  • Animation
    • 60 frames, 12 hour step.
    • Period used: 29.5 days
    • Animation began and ended near Apogee to minimize "jumping" when cycles back to the start.
    • New moon given an unreal 1% intensity "Ambient light" to show motion in all phases.
    • View assumed from the center of the earth. (Geometrically impossible, but best demonstration of monthly libration caused by moon's motion versus the shorter daily libration that would be included from the surface of the earth.)

說明

添加單行說明來描述出檔案所代表的內容

在此檔案描寫的項目

描繪內容 繁體中文

檔案來源 Chinese (Taiwan) (已轉換拼寫)

上傳者的原創作品 繁體中文

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