Learn the definition of main sequence stars. Understand the characteristics of main sequence stars and learn about when a star leaves the main...
How long a main sequence star lives depends on how massive it is. A higher-mass star may have more material, but it burns through it faster due to higher core temperatures caused by greater gravitational forces. While the sun will spend about 10 billion years on the main sequence, a star...
main sequence star 主序星翻译 【主序星翻译】main sequence star 主星序中的恒星的统称。【巨星】giant ( star) 指光度比太阳大三十至一千倍,即绝对星等在零等上下 的恒星。恒星的发光能力不仅依赖于它本身的温度,而且与它的体积有关系。巨星的直 径通常比太阳大二、三十倍。虽较超巨星为小,但仍然是很大的...
main sequence star 美 英 un.主序星 例句 释义: 全部,主序星
Pre-Main-Sequence Stardoi:10.1007/978-3-642-11274-4_2977Star, Pre-Main-SequenceSpringer Berlin Heidelberg
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It is suspected of harbouring a large population of pre-main-sequence (PMS) stars. Aims: We have probed the stellar population of NGC 1893 in an attempt to determine its size and extent. In particular, we look for signs of sequential star formation. Methods: We classify a large sample ...
摘要: In our observations of the young open star cluster NGC 6913, we discovered a star with a peculiar variation in its Hα profile. A preliminary analysis of the data is given.关键词:OPEN STAR CLUSTER STAR VARIABLE STAR DOI: 10.1016/0275-1062(96)00009-4 ...
Recent high-quality Hubble Space Telescope (HST) photometry shows that the main sequences (MS) stars of young star clusters form two discrete components in the color-magnitude diagram (CMD). Based on their distribution in the CMD, we show that stars of the blue MS component can be understood...
A pre-main sequence star (PMS star, or PMS object) is a star in the stage when it has not yet reached the main sequence. It can be a T Tauri star or FU Orionis star (0.5 Solar mass translates into a move along Hayashi tracks (almost vertically down) and later along Henyey tracks...