标签: M42

四边形星群: 猎户座大星云的能量核心

2024年1月5日 Trapezium: At the Heart of Orion Image Credit & Copyright: Fred Zimmer, Telescope Live Explanation: Near the center of this sharp cosmic portrait, at the heart of the Orion Nebula, are four hot, massive stars known as the Trapezium. Gathered within a region about 1.5 light-years in radius, they dominate the core of the dense Orion Nebula Star C...

参宿七的大视野影像

2023年4月7日 Rigel Wide Image Credit: Rheinhold Wittich Explanation: Brilliant, blue, supergiant star Rigel marks the foot of Orion the Hunter in planet Earth’s night. Designated Beta Orionis, it’s at the center of this remarkably deep and wide field of view. Rigel’s blue color indicates that it is much hotter than its rival supergiant in Orio...

猎户座大星云与跑步者星云

2023年3月10日 Orion and the Running Man Image Credit & Copyright: Abraham Jones Explanation: Few cosmic vistas excite the imagination like The Great Nebula in Orion. Visible as a faint celestial smudge to the naked-eye, the nearest large star-forming region sprawls across this sharp telescopic image, recorded on a cold January night in dark skies from West...

阿根廷雪峰上空的猎户座

2020 June 9 Orion over Argentine Mountains Image Credit & Copyright: Nicolas Tabbush Explanation: Do you recognize the constellation of Orion? It may be harder than usual in today’s featured image because the camera has zoomed in on the center, and the exposure is long enough to enhance nebulas beyond what the unaided human eye can see. Still, onc...

哈勃太空望远镜的红外波段马头星云

2020 April 12 The Horsehead Nebula in Infrared from Hubble Image Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA) Explanation: While drifting through the cosmos, a magnificent interstellar dust cloud became sculpted by stellar winds and radiation to assume a recognizable shape. Fittingly named the Horsehead Nebula, it is embedded in the vast and ...

212小时长曝光的猎户座

2020 March 29 A 212-Hour Exposure of Orion Image Credit & Copyright: Stanislav Volskiy, Rollover Annotation: Judy Schmidt Explanation: The constellation of Orion is much more than three stars in a row. It is a direction in space that is rich with impressive nebulas. To better appreciate this well-known swath of sky, an extremely long exposure was taken o...