2017年11月14日: 深空影像里的昴宿星团和尘埃-(The Pleiades Deep and Dusty)

2017年11月14日: 深空影像里的昴宿星团和尘埃-(The Pleiades Deep and Dusty)

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2017-11-14 / 0 评论 / 1 阅读 / 正在检测是否收录...

2017年11月14日: 深空影像里的昴宿星团和尘埃-(The Pleiades Deep and Dusty)
2017年11月14日: 深空影像里的昴宿星团和尘埃-(The Pleiades Deep and Dusty)--原图下载


Image Credit & Copyright: Juan Carlos Casado(TWAN,Earth & Stars),Miquel Serra-Ricart & Daniel Padron, FECYT
说明: 着名的昴宿星团,正缓缓地摧毁部份路过的气体和尘埃云。在地球的天空中,昴宿星团是最明亮的疏散星团,用肉眼在北半球几乎任何地方用肉眼能看见它。一般认为,这团路过的年轻尘埃云是古德带的一部份。古德带则是我们所在的银河系小区内,环拱太阳的一道不寻常恒星形成环。在过去100,000年之中,部份的古德带恰巧穿过年龄略长的昴宿星团,造成恒星和尘埃之间的强烈反应。恒星星光的光压,强烈排拒周围蓝色反射星云内的尘埃,其中较细小的尘埃所受到的排拒较强。短期的效应是:部份的尘埃云已聚成丝状结构和发生分层。这张主题深空影像,同时也记录了出现在左下方的彗星C/2015 ER61 (泛星彗星)。(Pleiades cluster 昴宿星团;Gould's belt 古德带)

原文:

Image Credit & Copyright: Juan Carlos Casado(TWAN,Earth & Stars),Miquel Serra-Ricart & Daniel Padron, FECYT
Explanation: The well-known Pleiades star cluster is slowly destroying part of a passing cloud ofgas and dust.The Pleiades is the brightest open cluster of stars on Earth's sky and can be seen from almost any northerly location with the unaided eye. The passing young dust cloud is thought to be part of Gould's Belt, an unusual ring of young star formation surrounding the Sun in the local Milky Way Galaxy.Over the past 100,000 years, part of Gould's Beltis by chance moving right through the older Pleiades and is causing a strong reaction between stars and dust.Pressure from the stars' light significantly repels the dust in the surrounding bluereflection nebula, with smaller dust particles being repelled more strongly. A short-term result is that parts of the dust cloud have become filamentary and stratified.The featured deep image also captured Comet C/2015 ER61 (PanSTARRS) on the lower left.

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