Hercules X-1

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Hercules X-1 [′hər·kyə‚lēz ¦eks ′wən]

(astrophysics)

A source of x-rays that pulses with a period of 1.237 seconds, and is eclipsed for 6 of every 42 hours, associated with a variable star, designated HZ Herculis, that also has a period of 42 hours and faint 1.237-second pulsations; believed to be a binary star whose invisible member is a rotating neutron star. Abbreviated Her X-1.

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No references found			herbicide Herbicides herbicolous Herbig emission star Herbig-Haro Object herbivore herbivory Herblock Herbrand, Jacques Herbst corpuscle Herbst, Josephine Hercegovina Hercegovina Uprisings of 1852-53, 1857-58, and 1861-62 Herculaneum Herculano de Carvalho e Araujo, Alexandre Herculano de Carvalho e Araújo, Alexandre hercularc lining Hercules Hercules Beetle Hercules cluster Hercules Graphics Hercules Pietersz Seghers Hercules stone Hercules superclusters Hercules trap Hercules X-1 Hercules'-club Hercynian Europe Hercynian Folding Hercynian geosyncline Hercynian orogeny hercynite Herczeg, Ferenc Herd Herd Horse Breeding herd immunity herd instinct Herd Turnover herd's-grass Herdal, Harald Herder, Johann Gottfried Herder, Johann Gottfried von herderite here document Heredia Heredia, José María Heredia, Jose Maria de Heredia, José María de hereditary hereditary deforming chondrodysplasia hereditary determinant			Hercules beetle Hercules beetle Hercules beetles Hercules beetles Hercules Club Hercules Cluster Hercules Columns Hercules Columns Hercules Enhanced Vision System Hercules Graphics Hercules Graphics Adapter Hercules Graphics Card Hercules Graphics Card Hercules Graphics Card Plus Hercules Integrated Project Team Hercules Load Planning System Hercules Nd:YAG Laser Hercules Pietersz Seghers Hercules powder Hercules Recovery Vehicle Hercules Seghers Hercules stone Hercules superclusters Hercules Syndrome Hercules Technology Growth Capital, Inc. Hercules trap Hercules Victor Hercules Wimbledon Athletic Club Hercules X-1 Hercules' beetle Hercules' club Hercules' club Hercules' clubs Hercules'-club Hercules'-club Hercules'-clubs Hercules, Pillars of Hercules, Pillars of Hercules-club Hercules: The Legendary Journeys Herculeses Herculeses Herculeses Herculies Herculies Herculius Hercynian Hercynian Hercynian Europe Hercynian Folding Hercynian geosyncline Hercynian Orogenic Belt Hercynian orogeny Hercynite Herczeg, Ferenc herd herd herd herd

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