3847/1538-3881/ab83ef, 220. Vicente, Belén; et al, NGC 2548: clumpy spatial and kinematic structure in an intermediate-age Galactic cluster, Monthly Notices of
arXiv:astro-ph/0010273 . 6 CMi. SIMBAD. 斯特拉斯堡天文資料中心. Chupina, N. V.; et al, Kinematic structure of the corona of the Ursa Major flow found using proper motions