planetary nebula

蛇妖星云

作者： NASA中文 / 2021年3月26日

2021年03月26日 The Medusa Nebula Image Credit & Copyright: Josep Drudis Explanation: Braided and serpentine filaments of glowing gas suggest this nebula’s popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500 light-years away in the conste […]

天文·每日一图

行星状星云Abell 78

作者： NASA中文 / 2020年10月16日

2020年10月16日 Planetary Nebula Abell 78 Image Credit & Copyright: Bernhard Hubl Explanation: Planetary nebula Abell 78 stands out in this colorful telescopic skyscape. In fact the colors of the spiky Milky Way stars depend on their surface temperatures, both cooler (yellowish) and hotter (bluish)