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| discoverer = J. Palisa | discovered = 21 October 1911 | discovery_site = Vienna Obs. | orbit_ref = 〔 | epoch = 9 December 2014 (JD 2457000.5) | uncertainty = 0 | observation_arc = 103.83 yr | eccentricity = 0.2492 | semimajor = 2.4557 AU | perihelion = 1.8436 AU | aphelion = 3.0677 AU | period = | inclination = 111.70° | asc_node = 204.27° | arg_peri = 205.42° | mean_anomaly = 280.16° | physical_characteristics = yes | rotation = 3.1305 h〔 | abs_magnitude = 13.8〔 }} 724 Hapag is a minor planet orbiting the Sun in the asteroid belt that was found by Austrian astronomer Johann Palisa in 1911.〔 It was assigned a provisional name of 1911 NC, then became a lost asteroid until it was rediscovered in 1988 as ' by T. Hioki and N. Kawasato at Okutama, Japan.〔 Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico in 2011 gave a light curve with a period of 3.1305 ± 0.0001 hours and a brightness variation of 0.11 ± 0.01 in magnitude.〔 == 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「724 Hapag」の詳細全文を読む スポンサード リンク
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