Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night...

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Characteristics of Stars 4-2

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Transcript of Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night...

Page 1: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Characteristics of Stars4-2

Page 2: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Constellations• Today we use constellations to find stars

in the night sky.

Page 3: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Classifying Stars

• Color

• Temperature

• Size

• Composition

• Brightness

Page 4: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Star Temperature

• Surface Temperature = Color

Blue-white White yellow orange red

Hottest *Sun coolest

Page 5: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Compare the sizes of Stars• Our Sun is a medium sized Star

Page 6: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

What is a Star?

• Hot glowing masses of Gases

• Composition: Mostly Hydrogen and Helium

Page 7: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

What makes a Star Shine?

• The fusion of Atoms

Hydrogen atoms fusing to form Helium

releasing Heat, Light and energy• Astronomers use a Spectroscope to determine

the composition of a Star

Page 8: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Star Brightness (magnitude)

• Absolute Magnitude: the “Real” brightness of the star. How much light it really gives off.(Need to know the distance to the Star)

• Apparent Magnitude: How bright the star appears to be.

Page 9: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Star Distance

• Measured in Light-Years

• Light-Year: The distance light travels in a year. (9.5 million million Kilometers)

5.87849981 × 1012 miles (6 trillion miles)

• Speed of light: 186,000 Miles/second 300,000 Kilometers/Second

Page 10: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Finding the Distance to Stars

• Parallax: The “apparent “ Shift that a star has over a period of Time

• The closer the object, the more it will shift position in the sky

*Background Star

Page 11: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

H-R DiagramHertzsprung-Russell

• Compares star temperature and Brightness

Page 12: Characteristics of Stars 4-2. Constellations Today we use constellations to find stars in the night sky.

Star Types


Constellations - CFAS · named patterns of stars. All societies created them. The classical – “ancient” – constellations that populate our sky began in the lands of the middle

Constellations - CFAS · named patterns of stars. All societies created them. The classical – “ancient” – constellations that populate our sky began in the lands of the middle

THE SKY. Since ancient times, people have named groups of the stars for heroes, gods and mythical beasts. These groups of stars are called constellations.

THE SKY. Since ancient times, people have named groups of the stars for heroes, gods and mythical beasts. These groups of stars are called constellations.

Part I: Constellations, Stars, and DSO’s

Part I: Constellations, Stars, and DSO’s

Night Sky Exploration...Night Sky Exploration For thousands of years humans have studied the night sky and found shapes in the stars. Constellations are groups of stars that form a

Night Sky Exploration...Night Sky Exploration For thousands of years humans have studied the night sky and found shapes in the stars. Constellations are groups of stars that form a

StARs and constellations in chemical space

StARs and constellations in chemical space

Stars, Galaxies, and the Universe Section 1. Tools of Modern Astronomy Constellations: Patterns of stars in the sky. Constellations: Patterns of stars.

Stars, Galaxies, and the Universe Section 1. Tools of Modern Astronomy Constellations: Patterns of stars in the sky. Constellations: Patterns of stars.

Constellations A constellation is a region of the sky. 88 constellations fill the entire sky.

Constellations A constellation is a region of the sky. 88 constellations fill the entire sky.

Stars and constellations appear in the same place in the sky every night True or False?

Stars and constellations appear in the same place in the sky every night True or False?

Lecture Stars and Constellations

Lecture Stars and Constellations

Constellations Medium Version (Medium Sky)

Constellations Medium Version (Medium Sky)

Constellations in the night sky

Constellations in the night sky

Stars and Constellations

Stars and Constellations

Chapter 13 Stars and Galaxies. Section 1 Stars A.Patterns of Stars- constellations 1. Ancient cultures used mythology or everyday items to name constellations.

Chapter 13 Stars and Galaxies. Section 1 Stars A.Patterns of Stars- constellations 1. Ancient cultures used mythology or everyday items to name constellations.

The Night Sky Constellations

The Night Sky Constellations

Constellations Jolie McLaine. Constellations 88 constellations that cover the sky 12 out of the 88 are zodiacs Since there are so many stars in the sky.

Constellations Jolie McLaine. Constellations 88 constellations that cover the sky 12 out of the 88 are zodiacs Since there are so many stars in the sky.

Characteristics of Stars Groups of stars that form patterns in the sky are called constellations – Example: Ursa Major (Big Dipper), Ursa Minor (Little.

Characteristics of Stars Groups of stars that form patterns in the sky are called constellations – Example: Ursa Major (Big Dipper), Ursa Minor (Little.

SPACE. What can we see in the sky? Star constellations are groups of stars that seem to form shapes or patterns The stars in constellations may not actually.

SPACE. What can we see in the sky? Star constellations are groups of stars that seem to form shapes or patterns The stars in constellations may not actually.

Constellations “stars together” · THE NIGHT SKY Every culture had description of the sky (Babylonians, Greeks, Chinese, etc.) - observed patterns of bright stars - imagined figures

Constellations “stars together” · THE NIGHT SKY Every culture had description of the sky (Babylonians, Greeks, Chinese, etc.) - observed patterns of bright stars - imagined figures

The Sky: Constellations - Coach Faulknerfaulknerchem.weebly.com/.../2/2/...constellations.pdf · The Sky: Constellations . Constellations In ancient times, constellations only referred

The Sky: Constellations - Coach Faulknerfaulknerchem.weebly.com/.../2/2/...constellations.pdf · The Sky: Constellations . Constellations In ancient times, constellations only referred

Constellations A pattern or group of stars in the sky is called a constellation. People of ancient time saw the constellations as character or animals.

Constellations A pattern or group of stars in the sky is called a constellation. People of ancient time saw the constellations as character or animals.