m*********y
发帖数: 1735 | 1 【 以下文字转载自 LosAngeles 讨论区 】
发信人: nectar (怂), 信区: LosAngeles
标 题: 不要错过今晚罕见的血月食 （Rare 'Blood Moon' Lunar Eclipse (转载)
发信站: BBS 未名空间站 (Mon Apr 14 19:45:14 2014, 美东)
发信人: zfax (xafz), 信区: LeisureTime
标 题: 不要错过今晚罕见的血月食 （Rare 'Blood Moon' Lunar Eclipse (转载)
发信站: BBS 未名空间站 (Mon Apr 14 14:47:59 2014, 美东)
发信人: zfax (xafz), 信区: WaterWorld
标 题: 不要错过今晚罕见的血月食 （Rare 'Blood Moon' Lunar Eclipse
发信站: BBS 未名空间站 (Mon Apr 14 14:43:55 2014, 美东)
今天晚上有月食，还是血红色的。
今晚不看，下次就是2032年乐。。。
不想整晚不睡的可以三点起来看到4点。
Don't Miss Rare 'Blood Moon' Lunar Eclipse Tonight
http://abcnews.go.com/Technology/miss-rare-blood-moon-lunar-ecl
urn your gaze to the stars tonight for an eerie and spectacular view of the
“blood moon.” At 12:53 a.m. ET, the Earth will begin to position itself
between the sun and the moon for the first of a series of four total
eclipses to conclude in September 2015.
The phenomenon is known as a tetrad, in which the moon is completely covered
by the earth’s umbral shadow for four eclipses in a row, as opposed to
only partial eclipses that fall in the outer penumbra. But rather than
succumbing to complete darkness, the moon will glow red as it receives the
refracted light that spills over the Earth’s circumference.
The series is a rare occurrence in history, with large spans of time, such
as the 300 years between 1600 and 1900, witnessing none. But the 21st
century will be more promising, according to Fred Espenak, who works for
NASA's Goddard Space Flight Center and specializes in eclipse predictions.
“Frequency sort of goes through 585-year cycles,” the astrophysicist
explains. “So you go through centuries where you don’t have any, and
centuries where you have a number of them.”
The next tetrad will begin in 2032.
Other factors add to the singularity of this year’s event. For one, North
America will have front-row seats to the show, not always a guarantee. It
just so happens that this part of the western hemisphere, along with some of
South America, will align perfectly with the cast shadow. The rest of the
world, on the other hand, will experience partial visibility or none at all.
But while the event is sure to be a breathtaking sight, for some it signals
a certain foreboding. “Something is about to change,” Pastor John Hagee of
the Cornerstone Church in San Antonio, Texas, writes in his newest book on
the four blood moons.
Because many biblical references cite the celestial bodies, Hagee says, “
God uses the sun, moon and stars to send signals to us on the earth.”
Among his most inspirational verses is Joel 2:30-31: “And I will show
wonders in the heavens ... the sun shall be turned into darkness and the
moon into blood before the coming of the great and awesome day of The Lord."
To catch the moon at its bloodiest (with the naked eye but weather
permitting), spectators should look up at 3:07 a.m. when it is entirely
covered by the earth’s shadow. | W**********r
发帖数: 8927 | | m*********y
发帖数: 1735 | 3 好像说是因为地球挡住月亮了
红光在大气层散射小，才能逃出去照到月球，所以是红色的
【在 W**********r 的大作中提到】
: 又说是Blue Moon的，呵呵
| g*****A
发帖数: 14950 | | s*****e
发帖数: 6053 | 5 到底有人看了吗？我同桌看了，我以为要凌晨四点呢。。。结果她12点多就看了 | W**********r
发帖数: 8927 | 6 我也12点左右看了，看到12点半
【在 s*****e 的大作中提到】
: 到底有人看了吗？我同桌看了，我以为要凌晨四点呢。。。结果她12点多就看了
| W**********r
发帖数: 8927 | | s****1
发帖数: 1519 | 8 今年十月，明年四月，十月还有，但不是每次都有得看（白天就看不到了）
【在 W**********r 的大作中提到】
: 据说今年还会有三次月全食
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