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siqingtan 2008-8-19 15:02

希腊爱好者拍的月食

Maximum Partial Totality and Umbral Shadow
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The year's fourth eclipse and second lunar eclipse went out with a bang, for
`%M3?u:wEu$B z} Luna put on?uka zL`0I
an impressive display during the course of approximately three hours involving W$tp5X+O*S|v
changes inoQ:K8r] L#P
phase, intensity and colouration. It is most unfortunate that a good portion of
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Europe was overcast with heavy clouds or rains.
] XL`#?1qE
z.x5]At ug In spite of the fact that the depth of the partial eclipse was 81%, a hint of`dQ(Kx8GL2F*g
red was visible in#QYGV2S.[ V
the eclipsed disk well before maximum totality and when the disk was only 50%C!p1U!X[R\P!il
within thehd xI1]&S5R
umbral shadow. At maximum, the eclipsed disk was quite dark with only a trace ofhe+?"@.nEp-l]
light
Z`H#]m m,i$p and, as indicated by the first link below, a long exposure (3.2 seconds at ISO
+|4qc8U9~x 200) was
WF&Z6^ d'U required.
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For my two initial results (with more on the way), I kindly direct you to:?W&n;p;u
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(1) [url=http://www.perseus.gr/Astro-Eclipses-2008-08-16.htm][color=#9136ad]http://www.perseus.gr/Astro-Eclipses-2008-08-16.htm[/color][/url]{Q}"T t&N%}
(2) [url=http://www.perseus.gr/Astro-Eclipses-2008-08-16b.htm][color=#9136ad]http://www.perseus.gr/Astro-Eclipses-2008-08-16b.htm[/color][/url]
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The first result (and link above) is the partial totality at maximum and whichY'u,`IF#W
required aElio ^4S+r$Yt
3.2" exposure. The second result (and link above) is the impressive umbral
`$K]J` n shadow which
/G|5Tsiy often is overlooked when presenting lunar eclipse images and which illustrates
'FF/[t@&F the umbral:_;I`8^;a L+r
cone in action.BxC c1P]a5@ P q rW$G
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It is unfortunate that we must wait nearly six months for the next eclipse and'M2QC,W G$~;J2f
whose path
^m[A j of annularity is in Indonesia. V i_l#N6U_
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Clear skies and best wishes from Greece!+Ea:S!q|E#}.g

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rw!S%e3e [[i] 本帖最后由 siqingtan 于 2008-8-19 15:07 编辑 [/i]]

超级派 2008-8-19 18:41

最后一张合成的太好了!

ggg911110 2008-8-19 19:19

好大的影子啊!bbbb24

Player 2008-8-25 21:02

拼接的方式很巧妙!開眼界了bbbb81

gawinzeng 2008-8-26 06:48

第二张强,很直观.

Alone狼 2008-8-31 17:17

拍的好 希腊 一片美丽的土地
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