2011年12月下一个新月
本帖最后由 q零度星系 于 2011-12-16 19:02 编辑The following diagrams show the visibility of the new crescent Moon over the first three days of the lunation. The unshaded areas indicate regions from which the Moon cannot be seen. The Moon becomes more easily visible from the regions of increasing colour intensity i.e. the Moon will be seen easily from the regions shown in red. The near vertical blue lines show the age of the Moon at the so-called "best time" of observation.
The following diagram shows the visibility of the new crescent Moon on 2011 December 24.
http://astro.ukho.gov.uk/assets/shim.gif
http://astro.ukho.gov.uk/assets/F2011Dec24.png
http://astro.ukho.gov.uk/assets/shim.gif
http://astro.ukho.gov.uk/assets/up2.gif
http://astro.ukho.gov.uk/assets/up2.gif
http://astro.ukho.gov.uk/assets/shim.gif
The second diagram is for 2011 December 25 and exhibits more shaded regions than those found in the map for 2011 December 24. Consequently, a larger fraction of the surface of the Earth will be able to observe the crescent Moon with ease.
http://astro.ukho.gov.uk/assets/shim.gif
http://astro.ukho.gov.uk/assets/F2011Dec25.png
http://astro.ukho.gov.uk/assets/shim.gif
http://astro.ukho.gov.uk/assets/up2.gif
http://astro.ukho.gov.uk/assets/up2.gif
http://astro.ukho.gov.uk/assets/shim.gif
The third diagram is for 2011 December 26 and is almost totally shaded in red. The majority of the Earth will be able to observe the crescent Moon with ease.
http://astro.ukho.gov.uk/assets/shim.gif
http://astro.ukho.gov.uk/assets/F2011Dec26.png
http://astro.ukho.gov.uk/assets/shim.gif
初一新月,全球不可见,初二新月中国基本不可见,初三新月全球基本都可见,是不是这个意思? 本帖最后由 q零度星系 于 2011-12-19 21:23 编辑
http://static.die.net/moon/512.jpg
Full Moon (GMT)
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You can now add the Moon Phase gadget to either your own web page or Google's personalized home page.Also available is a look at the earth and information about how this works.
New Moon (GMT)
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