标签: 猎户座

穿过猎户座的狮子流星

2022年11月28日 Leonid Meteors Through Orion Image Credit & Copyright: Luo Hongyang Explanation: Where will the next meteor appear? Even during a meteor shower, it is practically impossible to know. Therefore, a good way to enjoy a meteor shower is to find a place where you can sit comfortably and monitor a great expanse of dark sky. And it may be satisfyin...

七年的哈雷尘埃

2022年10月28日 Seven Years of Halley Dust Image Credit & Copyright: Petr Horalek / Institute of Physics in Opava Explanation: History’s first known periodic comet Halley (1P/Halley) returns to the inner Solar System every 75 years or so. The famous comet made its last appearance to the naked-eye in 1986. But dusty debris from Comet Halley can be seen...

猎户座星云之南

2022年1月27日 South of Orion Image Credit & Copyright: Vikas Chander Explanation: South of the large star-forming region known as the Orion Nebula, lies bright blue reflection nebula NGC 1999. At the edge of the Orion molecular cloud complex some 1,500 light-years distant, NGC 1999’s illumination is provided by the embedded variable star V380 Orionis...

从猎户座到南十字

2022年1月18日 From Orion to the Southern Cross Image Credit & Copyright: Lucy Yunxi Hu Explanation: This is a sky filled with glowing icons. On the far left is the familiar constellation of Orion, divided by its iconic three-aligned belt stars and featuring the famous Orion Nebula, both partly encircled by Barnard’s Loop. Just left of center in the f...

马头星云与火焰星云

2021年11月03日 The Horsehead and Flame Nebulas Image Credit & Copyright: Wissam Ayoub Explanation: The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation to the orange emission nebula at the far right of the featured picture. The horse-head feature is dark because it is really an opaque dust cloud that lies...

NASA一周新闻(2021.9.17)

为国际空间站未来的动力提升做准备… 国际空间站几名机组人员的任务延期… 商业伙伴首次进行了太空飞行… 最近新闻速递,尽在「本周NASA」! 来源:NASA 翻译:灼眼的粉丝 为国际空间站未来的动力提升做准备 9月12日,日本宇宙航空研究开发机构的宇航员星出明彦(Akihiko Hoshide)和欧洲航天局的托马斯·佩斯凯(Thomas Pesquet)在国际空间站外进行了近7小时的太空行走。他们安装了用于未来空间站第三个新太阳能电池阵列所需的支撑架。空间站现有的8个电力通道中有6个正在增加电池新阵列,以确保将来有足够的电力用于阿耳忒弥斯探测技术演示和其他活动。这是两名国际合作宇航员首次在空间站的探索气闸外进行太空行走。 两名机组人员延长在空间站的停留时间 美国宇航局的马克·范德·黑(Mark Vande Hei...

穿过红外光波段的猎户大星云

2021年07月07日 Flight Through the Orion Nebula in Infrared Light Video Credit: NASA, Spitzer Space Telescope, Universe of Learning; Visualization: F. Summers (STScI) et al.; Music & License: Serenade for Strings (A. Dvořák), Advent Chamber Orch. Explanation: What would it look like to fly into the Orion Nebula? The exciting dynamic visualization of the Ori...

猎户座前方的卫星

2021年06月01日 Satellites over Orion Image Credit: Amir H. Abolfath Explanation: What are those streaks across Orion? They are reflections of sunlight from numerous Earth-orbiting satellites. Appearing by eye as a series of successive points floating across a twilight sky, the increasing number of communications satellites, including SpaceX Starlink satellites,...

NASA一周新闻(2021.5.21)

商业载人任务补充了一名乘员… NASA局长讨论了NASA的预算要求… NASA副局长提名人出现在参议院… 最近新闻速递,尽在「本周NASA」! [rml_read_more] 来源:NASA NASA宇航员凯拉·巴伦(Kayla Barron)被选定参与SpaceX Crew-3任务,预计将于10月23日发射前往国际空间站(International Space Station)。同行宇航员包括NASA的汤姆·马什本(Tom Marshburn)和拉贾·查里(Raja Chari),以及欧洲空间局(European Space Agency)宇航员马蒂亚斯·毛雷尔(Matthias Maurer)。这是SpaceX前往空间站的第3次机组人员轮换任务,作为NASA商业载人计划(Commercial Crew Pr...

乌鲁鲁后方的闪电和猎户座

2021年05月10日 Lightning and Orion Beyond Uluru Image Credit & Copyright: Park Liu Explanation: What’s happening behind Uluru? A United Nations World Heritage Site, Uluru is an extraordinary 350-meter high mountain in central Australia that rises sharply from nearly flat surroundings. Composed of sandstone, Uluru has slowly formed over the past 300 m...