The SUN!.

Slides:



Advertisements
Similar presentations
What is the fate of our sun and other stars?
Advertisements

The Sun – Describe characteristics of the Sun (S6C3PO2 high school)
Our Star, the Sun Chapter Eighteen.
Chapter 8 The Sun – Our Star.
Review Vocabulary magnetic field: the portion of space near a magnetic or current-carrying body where magnetic forces can be detected The Sun contains.
The Sun Chapter 10.
This Set of Slides This set of slides covers our Sun, nuclear processes, solar flares, auroras, and more… Units covered 49, 50, 51.
7 THE SUN The star we see by day. 7 Goals Summarize the overall properties of the Sun. What are the different parts of the Sun? Where does the light we.
The Sun Astronomy 311 Professor Lee Carkner Lecture 23.
The Sun- Our Star. The Sun- Our Star Star Parts: core radiation zone convection zone photosphere chromosphere corona solar wind.
Slide 1. Slide 2 The Sun – Our Star Chapter 8 Slide 3 The preceding chapter described how we can get information from a spectrum. In this chapter, we.
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 =
THE SUN 1 million km wide ball of H, He undergoing nuclear fusion. Contains 99% of the mass in the whole solar system! Would hold 1.3 million earths!
Conversations with the Earth Tom Burbine
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,
Our Sun. Why do we care about the Sun... - Light, heat, life - Space weather solar wind (1,000,000 mph) flares (UV, x-ray radiation) disturb Earth's magnetic.
The Sun Our Nearest Star. The Source of the Sun’s Energy The Source of the Sun’s Energy Fusion of light elements into heavier elements. Hydrogen converts.
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 Section 26.1.
Full name Period II. Chapter 14, section 2: The Sun A. The Sun: is our local star. 1. Spectral Class: G2. 2. Distance to Earth:149,600,000 km *At the speed.
The Sun By: Kristel Curameng and Courtney Lee. The Sun The Sun is the most prominent feature in our solar system. The largest object and contains approximately.
Our Star, the Sun Chapter Eighteen. The Sun’s energy is generated by thermonuclear reactions in its core The energy released in a nuclear reaction corresponds.
The Sun.
The Solar Interior Core Radiation Zone Convection Zone.
The Sun ROBOTS Summer Solar Structure Core - the center of the Sun where nuclear fusion releases a large amount of heat energy and converts hydrogen.
THE SUN The star we see by day.
Definition: All space and objects within the Sun’s gravitational influence. (sun is sol, helios)
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’s Size, Heat and Temperature After completing this section, students will explain nuclear fusion, and describe the sun and compare it to other.
The Magnetic Sun. What is the Sun? The Sun is a Star, but seen close-up. The Stars are other Suns but very far away.
Charles Hakes Fort Lewis College1. Charles Hakes Fort Lewis College2 Chapter 9 The Sun.
Stars Physics Astrophysics. Brightness Different brightness. Different color. How bright are they really? What is due to distance? What is due.
The Sun 1 of 200 billion stars in the Milky Way. Our primary source of energy.
The Sun.
Ch. 26.1: Our Sun!.
1 THE SUN Nada Al-Haddad KU Leuven SHINE OUTLINES Properties Core Radiative Zone Convective Zone Photosphere Chromosphere Corona 2.
THE SUN. The Sun The sun has a diameter of 900,000 miles (>100 Earths could fit across it) >1 million Earths could fit inside it. The sun is composed.
The Sun The Sun imaged in white light by the SOHO spacecraft.
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.
The Sun: a star close up. The Sun in a stellar context: a spectral class G main sequence star.
1. active prominences - solar prominences that change in a matter of hours.
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.
A ________________ is a huge mass made of very hot gases (____________________ and ____________________) which produces energy through ________ ___________.
The Sun is our Local Star Pages Energy Flows Through the Sun’s Layers The Sun produces energy from Hydrogen and turns it into Helium The Sun.
Chapter 9 The Sun.
Our Sun & Nuclear Fusion (Chapter 7). Student Learning Objectives Compare properties of the Earth and Sun Describe the layers of the Sun and how energy.
The Magnetic Sun. What is the Sun? The Sun is a Star, but seen close-up. The Stars are other Suns but very far away.
The Solar System. Nebula Theory (our solar system) The solar system started from the spinning and condensing of a cloud of dust and gas. The greatest.
The Sun, our favorite star!
Chapter 14 Our Star.
The Sun Average in size… yes AVERAGE!! Mass is almost times that of Earth and a volume that is times the volume of Earth! Appears to.
Sun Notes. Characteristics CLOSEST star to earth CLOSEST star to earth The bright star in the center is Proxima Centauri.
A105 Stars and Galaxies  Homework 6 due today  Next Week: Rooftop Session on Oct. 11 at 9 PM  Reading: 54.4, 55, 56.1, 57.3, 58, 59 Today’s APODAPOD.
Sun, Moon, Earth, How do they work together to help life survive? our sun.
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.
Universe Tenth Edition Chapter 16 Our Star, the Sun Roger Freedman Robert Geller William Kaufmann III.
Outer Layers of the Sun Photosphere –Limb darkening –Sun spots Chromosphere Corona Prominences, flares, coronal mass ejections Reading
Sun phenomena. sunspots By tracking them, we realized the sun rotates Click here.
The Sun The SUN Chapter 29 Chapter 29.
The Sun.
The Sun Sun Facts Our sun accounts for 99.8% of ALL the mass in our solar system Average size star ( ~ 1.3 million Earths could fit inside.
THE SUN.
The Sun.
Chapter 20 Section 2: The Sun
What is the fate of our sun and other stars?
The Sun and Stars Lesson 2 pg. 808
The Sun: Our Star.
The Sun.
Chapter 9 The Sun.
The Sun.
Presentation transcript:

The SUN!

Basic Facts Mass M = 2x1030 kg = 300,000ME Radius R = 7x108 m = 7x105 km = 111RE Mean Density = Mass/Volume = M/((4/3)R3)= 1400 kg/m3 = 1.4 g/cm3 Distance = 1.5x1011 m = 1.5x108 km = 8.3 light-minutes Luminosity L = 3.9x1026 W (Solar Constant = 1350 W/m2) Mean Surface Temperature = Teffective = 5780 K Composition By Mass By Number H ~68% ~90% He ~31% ~10% “Heavies” ~1% ~1%

The Sun Contains 99.8% of the Mass of the Entire Solar System!

We Rely on the Sun for…

… Source of energy Plants-photosynthesis Creates wind Water cycle

The Sun’s Atmosphere

Photosphere All elements are gaseous Get denser as you move toward the core Photosphere is the “surface” we can see

Granulation

Chromosphere Density decreases but temperature increases Oddity considering the rest of the sun decreases in temperature as you move away from the core

Spicules Flamelike jets of gas that rise up into the chromosphere

The Corona Outermost part of the Sun’s atmosphere Extends millions of miles into space

Reading

Solar Activity

Magnetic Field

Video http://www.usatoday.com/story/news/nation-now/2014/01/06/sun-magnetic-field-polarity-reverse/4306845/

Sunspots What are they? Cause Regions marked by lower temperatures Dark spots on the solar surface Cause Magnetic field exits one and enters the other Messes up convection in granules and causes cooling

Structure Umbra-dark region Penumbra-lighter surrounding region

History 1610 Sunspots were first observed by Johannes and Fabricius 1612 Galileo explained sunspots

How They Are Used Rotation of the Sun Weather? Low sunspot activity High sunspot activity

Little Ice Age Low solar activity-few sunspots 1645-1715 Frozen rivers and year-round snow in unlikely places

Sunspot Cycles Cycles every 11 years

Maunder Minimum Lowest point of solar activity

Prominences Magnetic field redirects the flow of the gases-out one and in the other

Coronal Mass Ejection http://csep10.phys.utk.edu/astr162/lect/sun/comet.mpg Causes on Earth

Solar Winds Flow of charged particles away from the sun Continual Greater at coronal holes and less at helmet streamers

Fusion http://www.youtube.com/watch?v=pusKlK1L5To

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

© 2024 SlidePlayer.com Inc. All rights reserved.