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The Birth of a Star Kyle K Shane G Mark F
Interstellar Cloud The name given to an accumulation of gas, plasma and dust in our and other galaxies.
A Collapsing Cloud Fragment One of many fragments in a typical interstellar cloud that contains one or two solar masses of material. This fragment eventually collapses.
Fragmentation Ceases The fragment eventually shrinks to the size of a solar system and starts to heat up. This stage is when the fragment starts to look like a star.
Protostar 100,000 years into the stars lifecycle it enters stage 4. The protostar continues to shrink. –Its density increases –Its temperature rises
Protostellar Evolution In stage 5 the protostar has shrunk to 10 times the size of the sun. Its central temperature is approximately 5,000,000 K.
A Newborn Star The central temperature reaches 10,000,000 K which triggers nuclear burning. –This process causes the star to be born.
The Main Sequence Over 30,000,000 years the star continues to contract. Its central temperature reaches 15,000,000 K. Stage 7 is about where our sun is now.
Stellar Birth By: Scott M & Jeremy B By: Scott M & Jeremy B.
STELLAR BIRTH By Preston B & Kara P (picture of Protostar)
Stellar Birth Jade J Rachael H. Stages of Stars In the birth of a star there are seven stages in it’s formation. A star's life is a constant battle against.
Stellar Evolution Stellar Evolution Or How and Where do stars come from?
Stellar Birth Nikki B Karly B. Interstellar Cloud An accumulation of dust, gas and plasma that is a denser-than- average region of the interstellar medium.
The Evolution of Stars - stars evolve in stages over billions of years 1.Nebula -interstellar clouds of gas and dust undergo gravitational collapse and.
Introduction to Astrophysics Lecture 10: Star formation.
Off the Main Sequence - The Evolution of a Sun-like Star Stages
© 2011 Pearson Education, Inc. Chapter 19 Star Formation (Birth) Chapter 20 Stellar Evolution (Life) Chapter 21 Stellar Explosions (Death)
Birth of the Solar System. See The Birth Of A Solar System.
Chapter 17 Astro1010-lee.com UVU Survey of Astronomy Chapter 17 Formation of Stars.
The Fundamental Problem in studying the stellar lifecycle We study the subjects of our research for a tiny fraction of its lifetime Sun’s life expectancy.
Star Formation. Chapter 19 Not on this Exam – On the Next Exam!
Star Formation Processes in Stellar Formation Sequence of Events Role of Mass in Stellar Formation Observational Evidence New Theories.
Birth Place of Stars: Dark and cold inter-stellar clouds These clouds are made of more hydrogen than helium. These clouds have very small amount of heavier.
The Life Cycle of Stars. Stars are huge masses of gas with a massive gravitational pull that keeps the planets orbiting around them. They also give out.
Star Formation Why is the sunset red? The stuff between the stars Nebulae Giant molecular clouds Gravitational collapse of molecular cloud Gravitational.
STAR BIRTH. Guiding Questions Why do astronomers think that stars evolve? What kind of matter exists in the spaces between the stars? Where do new stars.
Life Cycle of a Star. We now know that stars move through a complex life cycle – they are created, live extremely long lives and then expire. We now know.
1 Concept Map for Star Formation accretion disk bipolar jet birth line cloud-cloud collision cocoon cold gas disturbance dust grains fragmentation free.
Ch. 9 The Lives of Stars from Birth through Middle Age The Cone Nebula Quick review of Tuesday’s lecture.
© 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.
By CJ B. Star Life Cycle. Protostars Stars begin to form out of a nebula Nebulas are a giant cloud of dust and gas (about 97% hydrogen and 3% helium)
Birth of a Star The stages of how a stars life begins. By: McKenna F.
Ch. 9 The Lives of Stars from Birth through Middle Age The Cone Nebula.
Star Formation. Introduction Star-Forming Regions The Formation of Stars Like the Sun Stars of Other Masses Observations of Brown Dwarfs Observations.
Life Cycles of Stars. Stars Stars are a large hot balls of plasma that shine The Sun is the Star in our solar system A group of stars that form a recognizable.
Chapter 11 The Interstellar Medium. The Eagle Nebula.
LIFECYCLE OF A STAR. TYPES OF STARS Dwarfs - Smaller stars are called dwarf stars. Red and yellow stars are generally called dwarfs. A white dwarf is.
Stellar Evolution Describe how a protostar becomes a star. Explain how a main-sequence star generates energy. Describe the evolution of a star after its.
Life Cycle of a Star! Chapter 28 Section 3. All stars in the universe are at different stages of their life cycles. A star’s mass determine its life span.
Astronomy – Stellar Evolution What is a Star? Stars are hot bodies of glowing gas that start their life in Nebulae.(1) 2.
This set of slides This set of slides starts the topic of stellar evolution, overview, protostars, main sequence… Units covered: 59, 60, 61.
Chapter 12. Star Stuff (mostly different from book) I. Birth of Stars from Interstellar Clouds Young stars near clouds of gas and dust Contraction and.
1. Where Are We?? We live in the Milky Way Galaxy, which is one of at least billion (maybe up to !) galaxies in the universe. The Milky.
Death of Stars. Lifecycle Lifecycle of a main sequence G star Most time is spent on the main-sequence (normal star)
Star Birth How do stars form? What is the maximum mass of a new star? What is the minimum mass of a new star?
H205 Cosmic Origins Today: The Origin of Stars Begin EP 6 Tuesday Evening: John Mather 7:30 Whittenberger APOD.
Homework #10 Cosmic distance ladder III: Use formula and descriptions given in question text Q7: Luminosity, temperature and area of a star are related.
Dirt and Stars The Life of a Star Dirt, Nebulae Collapse proto-stars and stars.
BEYOND OUR SOLAR SYSTEM CHAPTER 25 Part II. INTERSTELLAR MATTER NEBULA BRIGHT NEBULAE EMISSION NEBULA REFLECTION NEBULA SUPERNOVA REMANTS DARK NEBULAE.
Life Cycle of Stars. Stars are born in Nebulae Vast clouds of gas and dust Composed mostly of hydrogen and helium Some cosmic event triggers the collapse.
Lecture Outlines Astronomy Today 8th Edition Chaisson/McMillan © 2014 Pearson Education, Inc. Chapter 19.
Life and Death of a Star. Sources of Energy A Star has Two Sources of Energy Source 1: Fusion –The Conversion of Light Elements into Heavier Ones Source.
Stars, Galaxies, and the Universe Section 2 Section 2: Stellar Evolution Preview Objectives Classifying Stars Star Formation The Main-Sequence Stage Leaving.
Star Life Cycle. Stellar Evolution: Life of the Star The most massive stars have the shortest lives. Stars that are 25 to 50 times that of the sun live.
Evolution of Stars. Main Factor of Life Cycle Beginning mass.
The Sun is a mass of Incandescent Gas A gigantic nuclear furnace.
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