Messier 63:向日葵星系
2019 June 6 梅西耶63:向日葵星系 图片来源及版权:Bernard Miller 说明:Messier 63是北部天空中一个明亮的螺旋星系,距离忠实的猎犬座(Canes Venatici)约2500万光年。这个宏伟的宇宙岛也被命名为NGC 5055,直径近10万光年。这大约是我们银河系的大小。M63由广受欢迎的绰号“向日葵星系”(Sunflower Galaxy)所命名,在这张清晰的望远镜拍摄的照片中呈现出明亮的黄色核心。它巨大的蓝色旋臂上布满了宇宙尘埃带,点缀着粉红色的恒星形成区域。M63是一个已知星系群的主要成员,它具有微弱的、延伸的特征,很可能是来自潮汐破坏的卫星星系的恒星流。M63在电磁光谱中闪耀,被认为经历了强烈的恒星形成爆发。 Messier 63: The Sunflower Galaxy Image Credit & Copyright: Bernard Miller Explanation: A bright spiral galaxy of the northern sky, Messier 63 is about 25 million light-years distant in the loyal constellation Canes Venatici. Also cataloged as NGC 5055, the majestic island universe is nearly 100,000 light-years across. That’s about the size of our own Milky Way Galaxy. Known by the popular moniker, The Sunflower Galaxy, M63 sports a bright yellowish core in this sharp telescopic portrait. Its sweeping blue spiral arms are streaked with cosmic dust lanes and dotted with pink star forming regions. A dominant member of a known galaxy group, M63 has faint, extended features that are likely star streams from…