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A star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth ... However, most of the stars in the Universe, including all stars outside our galaxy, ... and many...

Star - Mass: The Fundamental Stellar Property - Stars, Massive ...


Mass is the most important stellar property. This is because a star's life is a continuous fight against gravity, and gravity is directly related to mass. The more  ...

Final Test: 3 Flashcards


Mar 13, 2013 ... Which of these stars will end its main sequence lifetime most rapidly? .... What is the most important property of a star that determines how it will ...

The Properties of Stars


We can determine an amazing number of physical properties of stars, usually based only on a little bit of light. ... This is not a fundamental property, but a combination of the luminosity and distance to a ... What are the stellar Constellations?

What are the properties of stars other than the sun? Stars


Stars: What We Can Learn About Them? ... Key points: Basic parameters of stars - luminosity, temperature, size, mass, ... Fundamental Stellar Properties .... are related in a specific way for most stars, as shown in the Hertzsprung-Russell, or H  ...

Measuring the Properties of Stars (ch. 17) - Astronomy - The ...


First we discuss how the properties of stars are measured and how they can be ... candles” is the most important). ... What kind of star do you expect to exhibit.

Basic Properties of Stars How do we measure star's mass? Types of ...


We can directly observe the orbital motions of these stars. ... Why is a star's mass its most important property? • What is a Hertzsprung–Russell diagram? How do ...

1. Basic Properties of Stars


In this module, we start by introducing a number of important observations that we ... With these properties of stars we should be able to describe most of their ... Exercise: Assume that the moon reflects all the light from the Sun, what is then its.

ASTRO-1 Lecture 04


What Fundamental Properties of a Star Determine its Position in the H-R ... The mass is the most fundamental property because it determines how much fuel a ...

Stellar Birth and Main Sequence Life


What happens during the Main Sequence phase of a stars life? ... star (you'll have to keep reading to find out which one is the most important; you think I'd ..... Some of these properties make MS stars distinct from others and help us understand ...

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16. Properties of Stars


stars (such as Mass) rather than seeing stars at ... What two basic physical properties do astronomers use to ... What is the most important property of a star?

Properties of Stars - Astronomy Notes


Jun 7, 2010 ... In order to get a better idea of what stars are like, put them into groups of some sort. ... You will see how that important question can be answered. ... If the temperature is too high, most of the hydrogen atoms will have their ...

Properties of Stars - Astronomy Notes


Nov 2, 2010 ... The brightness of stars are specified with the magnitude system. ... (See the math review appendix for what is meant by the terms ``factor of'' and ``times''.) ... The important thing to remember is that brighter objects have smaller ... Most famous apparently bright stars are also intrinsically bright (l...