we're typically used to thinking of andromeda as this tiny speck of light, but the actual size of the halo...extends to a very large radius and it actually fills a substantial portion of the night sky,said study team member jason kalirai of the university
we're typically used to thinking of andromeda as this tiny speck of light, but the actual size of the halo...extends to a very large radius and it actually fills a substantial portion of the night sky,said study team member jason kalirai of the university
虽然被发现的位置在仙女座最可见范围－－即：旋转星盘－－－之外远的多的地方，但它们却仍受到该星系的引力束缚，成为被扩展后仙女星座的“光环”的一部分。