The findings come from 11 years of observations at the W. M. Keck Observatory in Hawaii.
位于夏威夷的W·M·凯克天文台(W. M. Keck Observatory)在进行了11年的观测以后,终于发现了这颗行星。
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The three-week delay guaranteed that he could confirm and characterize the candidates at the 10-m telescope at the Keck Observatory on Mauna Kea, the HST, or another powerful telescope.