Galaxies and Constellations

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Presentation transcript:

Galaxies and Constellations Ch 29 and 30 Astronomy Suns Disturbances Stars Lives Galaxies and Constellations Terms to Know Grab Bag 100 200 300 400 500

Colored band of light seen near the poles usually after a solar flare Answer

Auroras Home

Loop of incandescent gas that extends above the photosphere Answer

Prominence Home

Cooler, darker area of the photosphere with a strong magnetic field Answer

Sunspot Home

Sudden outward eruption of electrically charged particles Answer

Solar Flare Home

Auroras are usually seen after these… Answer

Solar Flares Home

A star begins as a ________, a cloud of gas and dust Answer

Nebula Home

Who did Ryan Reynolds recently marry? …..Just kidding. What color of stars are the hottest? Answer

Blue Home

How many years ago did the Big Bang occur? Answer

14 billion years ago Home

Pairs of revolving starts held together by gravity Answer

Binary Stars Home

How many years would a star with the suns mass stay on the main sequence? Answer

10 billion years . Home

What do scientists use to break sun’s light into a spectrum? Answer

spectrograph Home

What shape of galaxy is the Milky Way? Answer

Spiral Home

Objects in space moving away from an observer will display a ___ shift Answer

Red Home

The idea that all matter and energy was compressed into a small volume at one time billion of years ago, exploded and then began to expand is known as the ________ Answer

Big Bang Theory Home

The apparent shift in position of an object when viewed from different locations Answer

parallax Home

The sun gets its energy form this type of nuclear reaction Answer

Nuclear Fusion Home

Stars, dust and gas bound together by gravity Answer

Galaxy Home

The observed change in the frequency of a wave when either the source or observer is moving is known as ______ Answer

Doppler shift or effect Home

The brightness of a star as it appears from Earth is the _____ magnitude Answer

Apparent Home

The location on the H-R Diagram where most stars lie Answer

Main Sequence Home

What color are the hottest stars? Answer

Blue Home

The distance light travels in a year Answer

Light-year Home

Ursa Major, Draco, and Pisces are all examples of: Answer

Constellations Home

What are the Northern and Southern Lights? Answer

Auroras Home

How long do sunspot cycles last? Answer

11 years Home