标签: 行星状星云

英仙GK: 新星与行星状星云

图像中有一个暗淡的星云垂直延伸。中心是一个红色包层,周围环绕着漫射蓝色辐射。中心是一个明亮的、接近圆形的色彩斑斓的星云。有关更多详细信息,请参阅说明。

环状星云的外环

中心是一个色彩缤纷的星云,是环形星云中最常见的部分。在这个中心周围可以看到几层结构不同的红色发光气体。有关更多详细信息,请参阅说明。

哈勃望远镜观测小哑铃星云庆祝34周年

4月24日,为了庆祝NASA传奇的哈勃太空望远镜发射34周年,天文学家拍摄了位于3,400光年外北天拱极星座英仙座的小哑铃星云(也称为梅西耶76、M76或NGC 650/651)的快照。这个上镜的星云是业余天文学家最喜欢的目标。

HFG1和Abell 6: 行星状星云

2024年2月12日 HFG1 & Abell 6: Planetary Nebulae Image Credit & Copyright: Julien Cadena & Mickael Coulon; Text: Natalia Lewandowska (SUNY Oswego) Explanation: Planetary nebulae like Heckathorn-Fesen-Gull 1 (HFG1) and Abell 6 in the constellation Cassiopeia are remnants from the last phase of a medium sized star like our Sun. In spite of their shapes...

猫眼星云: 可见光及X射线波段的景观

2024年1月7日 The Cat’s Eye Nebula in Optical and X-ray Image Credit: NASA, ESA, Hubble Legacy Archive; Chandra X-ray Obs.; Processing & Copyright: Rudy Pohl Explanation: To some it looks like a cat’s eye. To others, perhaps like a giant cosmic conch shell. It is actually one of the brightest and most highly detailed planetary nebula known, compo...

NGC 2440: 新白矮星的茧

2023年12月24日 NGC 2440: Cocoon of a New White Dwarf Image Credit: NASA, ESA, Hubble; Processing: H. Bond (STScI), R. Ciardullo (PSU), Forrest Hamilton (STScI) Explanation: What’s that in the center? Like a butterfly, a white dwarf star begins its life by casting off a cocoon of gas that enclosed its former self. In this analogy, however, the Sun would be...

MyCn 18: 沙漏星云

2023年10月3日 MyCn 18: The Engraved Hourglass Planetary Nebula Image Credit & Copyright: NASA, ESA, Hubble, HLA; Processing & Copyright: Harshwardhan Pathak Explanation: Do you see the hourglass shape — or does it see you? If you can picture it, the rings of MyCn 18 trace the outline of an hourglass — although one with an unusual eye in it...

NGC 1360:知更鸟蛋星云

2023年8月5日 NGC 1360: The Robin’s Egg Nebula Image Credit & Copyright: Dong Liang Explanation: This pretty nebula lies some 1,500 light-years away, its shape and color in this telescopic view reminiscent of a robin’s egg. The cosmic cloud spans about 3 light-years, nestled securely within the boundaries of the southern constellation Fornax. Re...

M15: 紧实的球状星团

2023年6月15日 M15: Dense Globular Star Cluster Image Credit: NASA, ESA, Hubble Legacy Archive; Processing: Ehsan Ebrahimian Explanation: Messier 15 is an immense swarm of over 100,000 stars. A 13 billion year old relic of the early formative years of our galaxy it’s one of about 170 globular star clusters that still roam the halo of the Milky Way. Centere...