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・ 389th Strategic Missile Wing
・ 38M Botond
・ 37th Vanier Cup
・ 37th Venice International Film Festival
・ 37th Virginia Infantry
・ 37th Wisconsin Volunteer Infantry Regiment
・ 37th World Science Fiction Convention
・ 37th/52nd Battalion (Australia)
・ 37x145mmR M4
・ 38
・ 38 (City of Sheffield) Signal Regiment
・ 38 (disambiguation)
・ 38 (number)
・ 38 and 42 Mosley Street
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38 Arietis
・ 38 Aurigae
・ 38 BC
・ 38 Boötis
・ 38 Bridge Street, Chester
・ 38 Canadian Brigade Group
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・ 38 cm Belagerungshaubitze M 16
・ 38 cm schwerer Ladungswerfer
・ 38 cm Siegfried K (E)
・ 38 cm SK C/34 naval gun
・ 38 cm SK L/45 "Max"
・ 38 Counts of Battery
・ 38 Degrees


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38 Arietis : ウィキペディア英語版
38 Arietis


38 Arietis is the Flamsteed designation for a star in the northern constellation of Aries. It was once designated 88 Ceti,〔 forming part of the neighboring constellation of Cetus. With an apparent visual magnitude of +5.18,〔 it is bright enough to be viewed with the naked eye. The measured annual parallax shift of 27.52 mas〔 is equivalent to a distance of approximately from Earth.
The spectrum of this star matches a stellar classification of A7 III-IV,〔 with the luminosity class of III-IV indicating it shows traits part way between the subgiant and giant star stages of its evolution. It is a Delta Scuti variable with a period of 0.0355 days (51 minutes) and a magnitude change of 0.040.〔 This star is larger than the Sun, with more than double the Sun's radius and 11 times the luminosity.〔 This energy is being radiated into outer space from the atmosphere at an effective temperature of 7,638 K,〔 giving it the white-hued glow of an A-type star.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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