Stars earlier than F2 in a NGP region
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An objective prism survey for stars of spectral type F2 and earlier in a North Galactic Pole region was made with the Hamburg 80-120cm Schmidt telescope (dispersion 590{AA}/mm...
本研究针对银北极区（North Galactic Pole region）内光谱型（spectral type）为F2及更早型的恒星，使用色散为590埃/毫米的汉堡80-120厘米施密特望远镜（Schmidt telescope）开展了物端棱镜巡天（objective prism survey）……
