s*****t
发帖数: 1994 | 1 Light Echoes from V838 Mon
Credit: H. Bond (STScI), A. Henden (USNO Flagstaff), Z. Levay (STScI), et al., ESA,
NASA
Explanation: Nominated for most mysterious star in the Milky Way, V838 Monocerotis
briefly became one of the brightest stars in our galaxy. Its outburst discovered in January
2002, observations have indicated that V838 Mon somehow transformed itself over a period
of months from a small under-luminous star a little hotter than the Sun, to a
highly-lum |
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s*****t
发帖数: 1994 | 2 V838 Light Echo: The Movie
Credit: H. Bond (STScI), A. Henden (USNO Flagstaff), Z. Levay (STScI), et al., ESA,
NASA
Explanation: What caused this outburst of V838 Mon? For reasons unknown, star V838
Mon's outer surface suddenly greatly expanded with the result that it became the brightest star
in the entire Milky Way Galaxy. Then, just as suddenly, it faded. A stellar flash like this has
never been seen before -- supernovas and novas expel matter out into space. A |
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s*****t
发帖数: 1994 | 3 Light Echoes from V838 Mon
Credit: H. Bond (STScI), A. Henden (USNO Flagstaff), Z. Levay (STScI), et al., ESA,
NASA
Explanation: Nominated for most mysterious star in the Milky Way, V838 Monocerotis
briefly became one of the brightest stars in our galaxy. Its outburst discovered in January
2002, observations have indicated that V838 Mon somehow transformed itself over a period
of months from a small under-luminous star a little hotter than the Sun, to a
highly-lum |
|
s*****t
发帖数: 1994 | 4 V838 Light Echo: The Movie
Credit: H. Bond (STScI), A. Henden (USNO Flagstaff), Z. Levay (STScI), et al., ESA,
NASA
Explanation: What caused this outburst of V838 Mon? For reasons unknown, star V838
Mon's outer surface suddenly greatly expanded with the result that it became the brightest star
in the entire Milky Way Galaxy. Then, just as suddenly, it faded. A stellar flash like this has
never been seen before -- supernovas and novas expel matter out into space. A |
|
s*****t
发帖数: 1994 | 5 V838 Mon: Mystery Star
Credit: Lisa Crause (Univ. Cape Town), Warrick Lawson (Australian Defence Force
Academy)
Explanation: A leading candidate for the most mysterious star found in recent times is
variable star V838 Monocerotis. At a distance of about 8,000 light-years, V838 Mon was
discovered to be in outburst in January of this year. Initially thought to be a familiar type of
classical nova, astronomers quickly realized that instead, V838 Mon may be a totally n |
|
s*****t
发帖数: 1994 | 6 V838 Mon: Mystery Star
Credit: Lisa Crause (Univ. Cape Town), Warrick Lawson (Australian Defence Force
Academy)
Explanation: A leading candidate for the most mysterious star found in recent times is
variable star V838 Monocerotis. At a distance of about 8,000 light-years, V838 Mon was
discovered to be in outburst in January of this year. Initially thought to be a familiar type of
classical nova, astronomers quickly realized that instead, V838 Mon may be a totally n |
|
c***s
发帖数: 70028 | 7 据国外媒体报道，受玛雅预言世界末日和科幻电影《2012》的危言论，人们对于一些古代世界末日的预言将信将疑，科学家近日对虚假的玛雅预言进行了批判和解释。
以古代玛雅日历为基础上的理论认为，2012年12月21日将是世界末日。不过，科学家在新的一年即将来临时推翻这一理论。(美国宇航局最近被迫发出2012年全面的事实调查)。
在一些2012年世界末日的预言里，地球变成了危险的地方，因为小行星撞击地球使地球发生极移(pole shift)(如上图所示)，与银河系的中心对齐，大量太阳辐射炙烤着地球，导致地球内部不稳定。
地球的地壳和地幔会突然转向，围绕地球液态铁的外核旋转，导致城市倒入海中。
普林斯顿大学地质学家亚当·马卢夫(Adam Maloof)广泛地研究了极移，在2009年的国家地理频道纪录片：《2012最后的预言》(2012 Countdown to Armageddon)演示这个神话。
马卢夫说，岩石磁场的证据证实，各大洲都发生了如此激烈的重新排列，但这一过程经历了数百万 年，慢到人类几乎感觉不到位移。
哈勃太空望远镜在2002年拍摄到银河系麒麟座的恒星V838和其周围的尘埃云包含的幽... 阅读全帖 |
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E*********n
发帖数: 542 | 8 omg...
mm你的头像
V838 HER
mm也是做天文的么? |
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E*********n
发帖数: 542 | 9 google image
V838 HER
and you will see it |
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