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...
Science Courses / Astronomy 101: Intro to Astronomy What is a Main Sequence Star? Lesson Transcript Instructor Artem Cheprasov Artem has a doctor of veterinary medicine degree. Cite this lesson A main sequence star has characteristics that place it on an H-R diagram's band, or main sequence...
A. The evolution of interstellar gas clouds. B. The lifetime of stars. C. The quality of main-sequence stars. D. The formation of stars. 相关知识点: 试题来源: 解析 D [解析] 12-17Professor So far as we know, most of the matter in the universe is in the form of stars. The maj...
term as these events take a long time.We are talking billions of years, which is why most of what we theorize about comes from computer simulations.Otherwise all we have seen is sort of freeze frame of whatever stage the encounter is in, a single picture out of a long sequence of ...
What is stellar astronomy? What type of constellation is Canis Minor? What is a cepheid variable star? Where and how do stars form? What is the cycle of the making of a star? Which main sequence stars are the most massive? How many stars are in Cygnus?
In astronomy, apogee refers to the further point in an object's elliptical orbit from the center of the orbit. For example, the moon orbits the earth...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
When a star begins its main sequence life, it is fusing hydrogen to helium within the core. Throughout the life cycle, the core begins to be depleted of hydrogen. As the composition of the core changes, the star leaves the main sequence and becomes a red giant....
Things that make life on Earth possible: The Sun is a G-type main-sequence star (G2V) based on spectral class and is informally referred to as a yellow dwarf. It is stable (even less active compared to its siblings), long-lasting, and metal-rich. Image: NASA ...
A star that consumes hydrogen to form helium is called a "main-sequence" star for all the time it is a hydrogen-fusing object. When it uses up all its fuel, the core contracts because the outward radiation pressure is no longer enough to balance the gravitational force. The core temperatur...
Has suddenly heard the bell sound which attends class, thought not wonderfully, has been late, then shows the whites of the eyes saying: All is you harms.As soon as then has badly smiles: The dumb kid, walked first, later in slowly will do accounts with you.Rode the bicycle speedily ...