Astronomers learn by looking

Slides:



Advertisements
Similar presentations
Life Cycle of Stars.
Advertisements

Ch. 9 – The Lives of Stars from Birth through Middle Age Second part The evolution of stars on the main sequence.
Random Letter of Wisdom Dear Mr. Planisek’s HPSC classes: Before you begin today- 1.This is one of the best classes that you will ever take. Keep.
May 2006April 2004Belinda Wilkes A bit about me! Dr. Belinda Wilkes, Professional Astrophysicist (Astronomer) Smithsonian Astrophysical Observatory, Cambridge,
Astronomy Picture of the Day. Recall: Luminosity - Intrinsic property of a star. Apparent Brightness – the brightness we perceive a star to be from Earth.
stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.
What is the Lifecycle of a Star? Chapter Stars form when a nebula contracts due to gravity and heats up (see notes on formation of the solar system).
Stars Star field taken with Hubble Space Telescope.
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.
LET’S PLAY JEOPARDY!! Life cycle H-R Diagram characteri stics Mixed Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final JeopardyJeopardy.
Fusion, Explosions, and the Search for Supernova Remnants Crystal Brogan (NRAO)
 A star is a ball of hydrogen, helium and enough mass that can bear nuclear fusion at its core  Stars are most often seen at night in a clear sky 
THE LIFE CYCLE OF STARS Stars are born in nebulae. Huge clouds of dust and gas collapse under gravitational forces, forming protostars. These young stars.
2005 K.Corbett Life Cycle of Stars K.Corbett 3 categories of stars  Sun-sized stars  (up to 6 times the size of the sun)  Huge stars  (
The Universe… …is space and everything in it.
Life Cycle of a star HR Diagram Review. The HR (Hertzsprung-Russel) Diagram.
Life Cycle of a Star. NEBULA A huge cloud of gas and dust within a galaxy where new stars are born. A huge cloud of gas and dust within a galaxy where.
The life cycle of Stars. Where do stars come from  Stars form in clouds of gas (a nebula)  These are called diffuse nebula or star forming nebula. 
ETA CARINAE – NATURE’S OWN HADRON COLLIDER We still do not know one thousandth of one percent of what nature has revealed to us. - Albert Einstein -
Unit 1 Lesson 3 The Life Cycle of Stars
- HW Ch. 10, EXTENDED Mon. Nov. 8 - HW Ch. 11 & 12, due Mon. Nov HW Ch. 13 & 14 due Mon. Nov. 22 Exam 3 on Tuesday Nov. 23.
STARS.
Life Cycle of a Star STAR NURSERY The star nursery is called the Nebula. Spaces acts as a nursery full of the gases and dust that stars need to.
BEYOND OUR SOLAR SYSTEM CHAPTER 25 Part II. INTERSTELLAR MATTER NEBULA BRIGHT NEBULAE EMISSION NEBULA REFLECTION NEBULA SUPERNOVA REMANTS DARK NEBULAE.
STARS Earth and Space. INTRODUCTION When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost.
Stars and Galaxies Traveling Beyond the Earth Chapter 21.
Stellar Evolution From Nebula to Neutron Star. Basic Structure The more massive the star the hotter it is, the hotter it is the brighter it burns Mass.
And a Star is Born xY.
May 2006April 2004Belinda Wilkes Astronomers learn by looking.
Unit 1 Lesson 3 The Life Cycle of Stars
Stage 1: Nebula – Latin for “cloud”
Thank you for not chewing gum or anything else 
Chapter 3.1graphic organizer
2009: A Big Year for Science! 200 years, Darwin’s birth: 12 Feb 1809
Stars.
25.2 Stellar Evolution Objectives
Stellar Evolution.
A bit about me! Dr. Belinda Wilkes, Professional Astrophysicist (Astronomer) Smithsonian Astrophysical Observatory, Cambridge, Mass., USA On contract to.
Cut and GLUE
The Birth, Life, and Death of Stars
Made mostly of hydrogen
Chapter 24 Stars and Galaxies.
Galaxies and Stars.
1. Describe 3 things you already know about stars.
Life Cycle of a Star.
Outline of Ch 11: The H-R Diagram (cont.)
The Life Cycle of a Star.
Composition of Stars Classify stars by their color, size, and brightness. Other properties of stars are chemical composition and mass. Color and Temperature.
Life Cycle of Stars 2005 K.Corbett.
Stars & Galaxies.
Life Cycle of Stars 1st Step: Stars form from nebulas
Life cycle of a star - foldable
Stars.
19.3 Stars.
STARS.
Astronomy Star Notes.
1pt 1 pt 1 pt 1pt 1 pt 1 pt 1 pt 1pt 1pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt
LIFE AND DEATH OF STARS.
The Life and Death of Stars
You can often predict how a baby will look as an adult by looking at other family members. Astronomers observe stars of different ages to infer how stars.
STELLAR EVOLUTION. STELLAR EVOLUTION What is a star? A star is a huge ball of hot gas, held together by its own gravity. Most of the gas is hydrogen.
Life-Cycle of Stars.
How are stars born, and how do they die?
Unit 2: Stellar Evolution and Classification …The stars are a lot more than belonging to constellations! Unit 2 Miss Cohn.
Galaxies and Stars.
STARS.
Galaxies and Stars.
Life Cycle of a Star.
Stars From Nebula to Black Holes.
The Universe… …is space and everything in it.
Presentation transcript:

Astronomers learn by looking May 2006April 2004 Belinda Wilkes

Life Cycle of a Star The Sun: our nearest star May 2006April 2004 Belinda Wilkes

Stars have different colors B: blue – hottest A: green – warm C: red - cool What can we measure? May 2006April 2004 Belinda Wilkes

Color, Brightness + Count them May 2006April 2004 Belinda Wilkes

What makes the Sun Shine? May 2006April 2004 Belinda Wilkes

Where are Stars Born? Clusters: Pleiades May 2006April 2004 Belinda Wilkes

Stellar Nurseries Optical Infrared: 30 Doradus in LMC May 2006April 2004 Belinda Wilkes

The Crab Nebula Chandra X-ray Observatory: X-ray Hubble Space T/p: Optical May 2006April 2004 Belinda Wilkes

May 2006April 2004 Belinda Wilkes

Stellar Life Star burns fuel in its core (fusion: H→Helium) Initially fuel is H, star is on Main Sequence “Adult” (e.g. The Sun) When H runs out, core heats up and He, burns: “Middle Age” (Giant star) then He runs out, it burns heavier elements, e.g. Fe May 2006April 2004 Belinda Wilkes

HR Diagram shows age and mass May 2006April 2004 Belinda Wilkes

Death of a Star When all fuel runs out, the core collapses Outer regions of star explode outwards: Supernova SN shine more brightly than a galaxy for a few hours/days May 2006April 2004 Belinda Wilkes

We are made of stardust! May 2006April 2004 Belinda Wilkes

Cassiopeia A: X-rays May 2006April 2004 Belinda Wilkes

What are X-rays? May 2006April 2004 Belinda Wilkes

Supernovae by Chandra May 2006April 2004 Belinda Wilkes

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.