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...  huge size mean low temperature... it is now a ______ ________.  The outer layer of gas gets blown off producing a cloud of gas called a ___________ ______________  leaving a hot, dense core...it is now a ________ __________.  the white dwarf eventually cools into a _________ __________. MASSIVE ...
Pacing Our Solar System
Pacing Our Solar System

star model
star model

Study Guide – Midterm 3
Study Guide – Midterm 3

... • Usually detected through their effect on motion of the parent star. Earth mass planet in “habitable zone” would be the real prize. Why? Most Earth-like planet so far = 3 Earth masses, found by “gravitational lensing”. What is ...
EARTH SCIENCE HOMEWORK 11-7 Sun`s surface
EARTH SCIENCE HOMEWORK 11-7 Sun`s surface

... 4. The intense __________ fields associated with sunspots might cause ___________, which are huge arching columns of ______. (pg. 730, P4) 5. Gases near a _________ sometimes brighten suddenly, shooting outward at high speed. These violent eruptions are called _______ ___________. (2 words) (pg. 730 ...
SNC 1D - othsmath
SNC 1D - othsmath

... iii) the earliest form of a star is called a ___________________ and it is produced in a ______________ ...
INV 12B MOTION WITH CHANGING SPEED DRY LAB DATA
INV 12B MOTION WITH CHANGING SPEED DRY LAB DATA

... 3. How does the sun compare to the other stars on the main sequence? (Hint: The sun’s color is …..What part of the main sequence is it in – upper left, lower left, etc.?) ...
Quiz 2 review sheet - Rice Space Institute
Quiz 2 review sheet - Rice Space Institute

... can make all the elements, even the ones heavier than iron. 16. Stars even more massive than that, cannot hold up their core against neutron degeneracy. The end result is a black hole, when the density approaches infinity. 17. A black hole becomes so dense that the escape velocity (sqrt(2GM/R)) is g ...
The Sun - WordPress.com
The Sun - WordPress.com

9.2 The Solar Interior
9.2 The Solar Interior

... the use of instructors in teaching their courses and assessing student learning. Dissemination or sale of any part of this work (including on the World Wide Web) will destroy the integrity of the work and is not permitted. The work and materials from it should never be made available to students exc ...
The Solar System
The Solar System

... remember the order of the planets. Use “My very educated mother just served us nachos” or make up your own (be sure it works!) Name Color Group Homeroom ...
Document
Document

Astronomy Objective 1 1. An asteroid is a small, rocky object that
Astronomy Objective 1 1. An asteroid is a small, rocky object that

Sun - WordPress.com
Sun - WordPress.com

688 Chapter 21 Review - District 196 e
688 Chapter 21 Review - District 196 e

... make magnesium in a star from lighter elements. The rules are: a. The total of protons + neutrons must balance on both sides of the reaction. b. The reaction must involve only 2. c. A neutron can become a proton according to the reaction n → p + ν e + e + where νe is an electron neutrino and e+ is a ...
Ch. 26 The Sun and the Solar System
Ch. 26 The Sun and the Solar System

... • When the nuclei fuse, some of their mass is converted into energy. The mass of the particles involved in the reaction at the start of the reaction is greater than the mass of the particles at the end. The missing mass is converted into energy. The amount of energy produced varies depending on the ...
Homework 3 available
Homework 3 available

... Sun can shine with its current luminosity. Express your answer in years. Compare with the known age of the Sun, and comment. d. (5 points) Finally, something to ponder: it turns out in fact that the Sun has not stayed at exactly constant luminosity, but has rather increased in luminosity by somethin ...
27Oct_2014
27Oct_2014

... • Just below the photosphere is the convection zone. – Energy is transported from deeper in the Sun by convection, in patterns similar to those found in a pot of boiling water (hot gas rises, dumps its energy into the photosphere, and then sinks) ...
structure of the solar system
structure of the solar system

... 4) The four planets closest to the Sun are commonly referred to as the Inner Planets. They are Mercury, Earth, Venus and Mars 5) They are notable for being formed mainly of rocks 6) Three of the planets have atmospheres except Mercury 7) The atmospheres are fairly hazardous to life ...
The Sun: Our Closest Star and a Nuclear Fusion Reactor
The Sun: Our Closest Star and a Nuclear Fusion Reactor



... sweltering inferno (like Venus). Approximately a 50-100% increase in Solar luminosity should be sufficient for this to happen. How long do we have until life on Earth is destroyed? The Sun off the Main Sequence 5. About how long from now does the Sun leave the main sequence to turn into a red giant? ...
Stellar energy - schoolphysics
Stellar energy - schoolphysics

... helium every second, producing a staggering output of 3.90x1020 MW - equivalent to some million million million large power stations! ...
The Sun
The Sun

Activity – Scale Drawing of the Solar System
Activity – Scale Drawing of the Solar System

... 4) Using the conversion factor above, calculate the distances of planets from the sun in Astronomical Units (AU). 5) Using an appropriate scale of your choice (i.e. 1 cm = 1 AU). 6) Using the back of this sheet, sketch part of the orbits of the major planets to scale with respect to distance. Use a ...
Lesson 7 - Blackbody Radiation and Luminosity
Lesson 7 - Blackbody Radiation and Luminosity

... emitted per surface area. ENERGY FLUX ...
< 1 ... 217 218 219 220 221 222 223 224 225 ... 237 >

Standard solar model

The standard solar model (SSM) is a mathematical treatment of the Sun as a spherical ball of gas (in varying states of ionisation, with the hydrogen in the deep interior being a completely ionised plasma). This model, technically the spherically symmetric quasi-static model of a star, has stellar structure described by several differential equations derived from basic physical principles. The model is constrained by boundary conditions, namely the luminosity, radius, age and composition of the Sun, which are well determined. The age of the Sun cannot be measured directly; one way to estimate it is from the age of the oldest meteorites, and models of the evolution of the Solar System. The composition in the photosphere of the modern-day Sun, by mass, is 74.9% hydrogen and 23.8% helium. All heavier elements, called metals in astronomy, account for less than 2 percent of the mass. The SSM is used to test the validity of stellar evolution theory. In fact, the only way to determine the two free parameters of the stellar evolution model, the helium abundance and the mixing length parameter (used to model convection in the Sun), are to adjust the SSM to ""fit"" the observed Sun.
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