【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,由于这类恒星温度不 高,光谱型...
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...
A main sequence star is a star in the stable part of its life cycle. They are the most common type of star in the universe. Our star, the Sun, is in the main sequence phase. It is about halfway through this stage, and ultimately will become a red giant in roughly five billion yea...
nuclear fission C. gravitational collapse D. black holes 相关知识点: 试题来源: 解析 A。主序星通过核聚变(nuclear fusion)获取能量。选项 B 核裂变不是恒星获取能量的方式。选项 C 引力坍缩是恒星形成的过程,而非获取能量的方式。选项 D 黑洞不是主序星获取能量的来源。反馈 收藏 ...
main sequence star 美 英 un.主序星 例句 释义: 全部,主序星
A main sequence star has characteristics that place it on an H-R diagram's band, or main sequence. Discover features of a main sequence star and why people may have to leave Earth one day. Why We'll Have to Leave Our Planet Over a billion years from now, the Earth's oceans will ...
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Main Sequence, StarThe region of the Hertzsprung-Russell diagramoccupied by stars during their central H-burning phase is called the main sequence. It is a quasi-diagonal band, running from low to high values of...doi:10.1007/978-3-662-44185-5_928N. Prantzos...
Zero-Age Main Sequence Stars refer to the initial stage in the life cycle of a star, when nuclear reactions first generate its entire luminosity. During this stage, the star's chemical composition is assumed to be spatially homogeneous, and hydrogen is converted to helium at the center. These...