Chapters 12 and 13 The Sun & Measuring the Properties of Stars.

Slides:



Advertisements
Similar presentations
Universe Eighth Edition Universe Roger A. Freedman William J. Kaufmann III CHAPTER 16 Our Star, the Sun CHAPTER 16 Our Star, the Sun.
Advertisements

Sun Mr. Skirbst Physical Science Topic 26. The Sun.
The Sun – Describe characteristics of the Sun (S6C3PO2 high school)
The Sun – Our Star Chapter 7:. General Properties Average star Absolute visual magnitude = 4.83 (magnitude if it were at a distance of 32.6 light years)
Chapter 29 Review Stars.
Copyright © 2012 Pearson Education, Inc. Radius: 6.9  10 8 m (109 times Earth) Mass: 2  kg (300,000 Earths) Luminosity: 3.8  watts Our Star.
The Sun Chapter 10.
The Sun Chapter 7:. General Properties Average star Absolute visual magnitude = 4.83 (magnitude if it were at a distance of 32.6 light years) Central.
This Set of Slides This set of slides covers our Sun, nuclear processes, solar flares, auroras, and more… Units covered 49, 50, 51.
Magnetic Activity Astronomy 315 Professor Lee Carkner Lecture 11.
The Sun The Sun in X-rays over several years The Sun is a star: a shining ball of gas powered by nuclear fusion. Luminosity of Sun = 4 x erg/s =
Youtube: Secrets of a Dynamic Sun The Sun – Our Star
EARTH & SPACE SCIENCE Chapter 29 The Sun 29.2 Solar Activity.
The Sun Michael J Passow. General Characteristics Our closest star Source of almost all our energy One of 100 billion in the Milky Way Galaxy “average’
The Sun a medium sized star 93,000,000 miles away 109 times diameter of Earth 1 million Earths could fit in the Sun Made of gas: 82% hydrogen, 17% helium,
Charles Hakes Fort Lewis College1. Charles Hakes Fort Lewis College2 Doppler/ Sunspots/ Interior.
The Sun. 99% of the matter of the solar system is in the Sun. The Sun is an Average Star (main sequence star) The sun is not a Binary Star. (most stars.
Introducing the Sun!. The Sun in Mythology The Greeks and Romans believed the Sun was the god Apollo driving a chariot across the sky. Egyptians also.
The Sun The Sun is a star Huge ball of glowing ionized gas… plasma. Gravity vs. Nuclear Fusion Gravity wants to crush the star Fusion wants to explode.
The Sun: Part 3 and Measuring the Stars: Part 1. Net result: 4 protons → 4 He + 2 neutrinos + energy Hydrostatic Equilibrium: pressure from fusion reactions.
The Sun.
Inner Workings of the Sun (87). Sun is mostly hydrogen and helium gas (plasma). Core (15,000,000 ° C): –Fuels the sun, where the fusing of Hydrogen 
The Sun- Solar Activity. Damage to communications & power systems.
Stars Chapter 25. The Sun The Sun’s mass controls the motions of the planets Less dense than Earth High pressure and temperature causes gases to be plasma.
SOLAR FLARES AND ERUPTIONS Lyndsay Fletcher University of Glasgow.
The Sun Stellar Evolution: Low Mass Stars White Dwarfs
Solar Properties Has more than 99% the mass of our solar system Has more than 99% the mass of our solar system Diameter: 1,390,000 km Diameter: 1,390,000.
Chapter 9 Our Star, the Sun. What do you think? What is the surface of the Sun like? Does the Sun rotate? What makes the Sun shine?
1. Name one part of the sun. 2. Is the sun a solid, liquid or gas? 3. How hot was the center of the sun when it officially became a star?
Our Star, the Sun. The Sun is the Largest Object in the Solar System The Sun contains more than 99.85% of the total mass of the solar system If you.
The Sun – Our Star Our sun is considered an “average” star and is one of the 100 BILLION stars that make up the Milky Way galaxy. But by no MEANS does.
The Sun Chapter 14.2.
The Sun Youra Taroyan. Age 4.5 ×10 9 years Mean diameter 1.392×10 6 km, 109 × Earth Mass ×10 30 kg, 333,000 × Earth Volume 1.412×10 18 km 3, 1,300,000.
The Sun Composed of hydrogen and helium. Very dense core, all gaseous because of the very high temperatures. The Sun is the largest object in terms of.
The Sun: Part 2. Temperature at surface = 5800 K => yellow (Wien’s Law) Temperature at center = 15,000,000 K Average density = 1.4 g/cm 3 Density at center.
Chapter 14 Our Star.
Our Sun.
Units to cover: 52, 53, Observatories in Space.
Sun Notes. Characteristics CLOSEST star to earth CLOSEST star to earth The bright star in the center is Proxima Centauri.
Our Star the Sun. The Sun – Our Star Our sun is considered an “average” star and is one of the 200 BILLION stars that make up the Milky Way galaxy. But.
Reading Unit 31, 32, 51. The Sun The Sun is a huge ball of gas at the center of the solar system –1 million Earths would fit inside it! –Releases the.
The Sun Created by the Lunar and Planetary Institute For Educational Use Only LPI is not responsible for the ways in which this powerpoint may be used.
Outer Layers of the Sun Photosphere –Limb darkening –Sun spots Chromosphere Corona Prominences, flares, coronal mass ejections Reading
Our Star, the Sun. The Sun is the Largest Object in the Solar System The Sun contains more than 99.85% of the total mass of the solar system If you.
Ch Solar Activity. Sunspots Gases inside the sun move up and down due to convection and the sun’s magnetic fields. Regions of the photosphere are.
The Sun. The Sun.  Is located in the outer bands of our Galaxy  Is the center of our Solar System  Is a STAR!!!  Rotation: once in about 25 days 
Sun phenomena. sunspots By tracking them, we realized the sun rotates Click here.
The Sun.
The Sun and Our Earth The Structure of Our Sun The Energy of Our Sun
The Sun: Our Very Own Star
The Sun and Other Stars How do stars shine? How are stars layered?
The Sun: Portrait of a G2V star
The Sun: close-up of a spectral class G main sequence star
What is the fate of our sun and other stars?
The Sun and the Moon.
The Sun and Stars Lesson 2 pg. 808
The Sun: Our Star.
The Sun Chapter 17.
Lesson 1 The View from Earth Lesson 2 The Sun and Other Stars
The Sun and Our Earth The Structure of Our Sun The Energy of Our Sun
The Sun & It’s Solar System
Do Now 12/9/09 What is the sun made of???
Chapter 9 The Sun.
Sunspots Sunspots are the most well known feature on the photosphere. They are a region of the solar surface that is dark and relatively cool; and has.
The Sun.
The Sun.
Chapter 26: Stars and Galaxies
The Sun and Other Stars 14-2.
Sun Our Closest Star.
8-11 The Sun Astronomy November 18, 2008 Sanders.
Presentation transcript:

Chapters 12 and 13 The Sun & Measuring the Properties of Stars

“We are star stuff” - Carl Sagan

Reminder... star: A self-luminous, gravitationally bound, ball of gas that shines or has shone because of nuclear reaction in its interior

Brown Dwarfs- Failed Stars Mass < 8% the mass of the Sun And times the mass of Jupiter First detected in 1995

The Sun and other stars are huge and massive!!!

Figure 11.1 Our Sun

Sunspots regions of the photosphere that are dark and relatively cool corresponds to regions of intense magnetic fields Galileo monitored their movement to determine the rotation period of the Sun= about 1 month

Figure Sunspots occur when the magnetic field loops out of the photosphere

Figure 11.18a Prominences Filaments

Flares and Coronal Mass Ejections coronal mass ejections flares

The Earth’s magnetic field protects us!

Sunspot Cycle Maximum number Minimum number

Figure Sun’s Rotation

Babcock’s Magnetic Dynamo Theory

Binary Stars binary stars: multiple systems bound by gravity and orbiting each other around their center of mass (double star)

Contact Binary Stars

Star Clusters Open ClusterGlobular Cluster

Open or Globular Cluster?

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

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