ОКО ПЛАНЕТЫ > Космические исследования > Еще одна комета столкнулась с Солнцем
Еще одна комета столкнулась с Солнцем26-08-2013, 07:41. Разместил: VP |
Как сообщает spaceweather.com, вторая комета на этой неделе столкнулась с Солнцем. Коронографы, которые находятся на борту солнечно-гелиосферной обсерватории (SOHO) ведут наблюдение за смертью ныряющего в звезду объекта.
ONE LESS COMET: Subtract one from the Solar System's total count of comets. Yesterday a small unnamed comet dove into the sun and completely evaporated. Click on the image to see the death plunge, animated:
The icy comet, R.I.P., was a member of the Kreutz family. Kreutz sungrazers are fragments from the breakup of a single giant comet many centuries ago. They are seen falling into the sun dozens of times a year. This particular sungrazer measured a few tens of meters in diameter, too small to survive a close approach with the sun.
A much larger sungrazer is on the way. Comet ISON (not a member of the Kreutz family, but a sungrazer nevertheless) will fly through the sun's atmosphere on Thanksgiving Day 2013. Unlike yesterday's tiny comet, Comet ISON is expected to survive its brush with death. The nucleus of ISON is probably wider than 0.5 kilometers, too big to completely evaporate during its transit of the sun's atmosphere. If optimistic estimates are correct, Comet ISON could emerge post-Thanksgiving as one of the brightest comets in many years. First, however, Comet ISON is paying a visit to Mars on Oct. 1st, giving Mars rovers and satellites a sneak preview of a potentially-Great Comet. Watch this NASA video for details. Вернуться назад |