龙蛋的双极瓣辐射云
一颗蓝色的恒星位于一个红色星云的中心，周围是一个暗淡的蓝色星云。周围的星场本身有一个微弱的红棕色发射云。有关更多详细信息，请参阅说明。
NGC 6164: 龙蛋星云及其外晕
2022年12月26日 NGC 6164: Dragon’s Egg Nebula and Halo Image Credit & Copyright: Russell Croman Explanation: The star at the center created everything. Known as the Dragon’s Egg, this star — a rare, hot, luminous O-type star some 40 times as massive as the Sun — created not only the complex nebula (NGC 6164) that immediately surrounds it, but also the encompassing blue halo. Its name is derived, in part, from the region’s proximity to the picturesque NGC 6188, known as the fighting Dragons of Ara. In another three to four million years the massive star will likely end its life in a supernova explosion. Spanning around 4 light-years, the nebula itself has a bipolar symmetry making it similar in appearance to more common planetary nebulae…