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| dec = 〔 | appmag_v = 9.88 | constell = Aquila }} V1429 Aquilae is a blue hypergiant variable star located in the constellation of Aquila. It is often referred to by its Mount Wilson Observatory catalog number as MWC 314. ==Physical properties== V1429 Aquilae is sufficiently remote that its distance must be determined by indirect methods: estimations range between 3 and 4.3 kiloparsecs (9,800-14,000 light years), with the most likely value nearer to the former, lower figure. V1429 Aql is a single-line spectroscopic contact binary with a period of about 2 months. The system surrounded by a disk of gas as well as a very extensive bipolar nebula. The system shows partial eclipses which produce very small magnitude changes because the primary is so much hotter and brighter than the secondary. The surface brightness of the primary is 15 times higher and the eclipses change the brightness by about 0.1 magnitudes.〔 The primary is a hot B-type star. Its total luminosity has been estimated to be as much as 1,200,000 times that of the Sun (), with a radius 60 times larger than that of our star (), and 80 times more massive than the Sun (). More recent calculations give a luminosity of , radius of , and mass of .〔 The physical parameters of the star, and its spectrum, are comparable to a luminous blue variable (LBV). Although it has not shown the defining outbursts and spectral variations, the surrounding nebulae indicate episodes of heavy mass loss in the past.〔 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「V1429 Aquilae」の詳細全文を読む スポンサード リンク
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