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HD 3
HD 3 is a triple star located away in the constellation Andromeda. The primary component, with a spectral type of A1Vn and apparent magnitude of 6.71, is just on the limit of naked-eye visibility under the best conditions on Earth. The secondary and tertiary components have apparent magnitudes of 10.53 and 13.5 respectively.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「HD 3」の詳細全文を読む
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