Second Quiz Flashcards by Kim pabillore

The study of objects on the heavens.

Astronomy

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What is astronomy called to be?

The oldest science

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It is an immense fusion reactor in space

Star

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What are stars consist of?

Hydrogen and helium

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Stars are held by?

Gravity

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The star radiates energy generated through?

Nuclear fusion

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What is the nearest star to the earth

Sun

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What do the stars transmit?

Electromagnetic radiation in the form of photons

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Primary source of data on distant stars

Electromagnetic radiation

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It is an energy in form of photons streaming through space at 3x10^8m/s

Electromagnetic radiation

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What are the measuring aspects of photons?

Wavelength(spectroscopy)
Intensity(light meter)
Direction(altitude and azimuth)
Variations of wavelengths intensities and position with time

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Through those measurements, scientists are able to understand..

Distribution in space
Physical characteristics such as mass and composition
Histories
Future behavior

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A device that focus and concentrate radiation from distant objects
It is a visible light

Telescope

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The scientist who modified and was first to see the telescope

Galileo galilei

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The biggest telescope

Keck telescope on maua kea

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Soon to be the worlds largest telescope

The giant Magellan telescope

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Where is the soon to be the worlds largest telescope found?

Las campanas observatory in the Andes mountains of northern chile

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When is the soon to be telescope scheduled for completion?

2018

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It is a discrete bundle or quantum of electromagnetic energy. It is always in motion at a constant speed of light

Photons

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It is a mystery in science where they do this mostly in Pennsylvania which are the rocks that have the property of resonating like a bell when struck

Ringing of the rock

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Other kind of telescopes

Chandra x-Ray observatory
Fermi gamma ray telescope
James Webb space tel.
Planck observatory
Kepler observatory

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Structure of the sun

Core
Radiative zone
Convective zone
Photosphere
Chromosphere
Corona
Sunspot
Granules
Prominence

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What is the center of the sun called?

Stellar core

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It is the 10% of the Suns total volume

Stellar core

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It is the Suns furnace, nuclear rage and energy generated

Stellar core

The energy in the stellar core takes place through

Collisions of high energy particles like X-rays

It is hydrogen rich and has a turbulent upper of 200,000

Convection

Emits most of the light we see. It is the lowest layer of the sun. It is where the Suns energy is released as light.

Photosphere

Only part that we see

150 km into the sun | Any deeper and the stellar material becomes too dense to be transparent

Light reaches earth in about

8 minutes

It is marked by bright bubbling granules of plasma and darker cooler sunspots, which emerged when the Suns magnetic field breaks through the surface. It is also the source of solar flares

Photosphere

They appear to move across the Suns disk

Sunspots

Emits a reddish glow as super heated hydrogen burns off but the red rim can only be seen through solar eclipse, weak light

Chromosphere

Third layer of the sun. It can only be seen during a total solar eclipse. It appears white streamers or plumes of ionized gas that flow outward to space

Corona

It constantly emits particles into space, electrically charged atoms-ions like hydrogen and helium

Sun

Solar wind +magnetic field

Aurora boreal is

Is the process of making single heavy nucleus from two lighter nuclei, the nucleus is made by fusion releasing large amounts of energy

Nuclear fusion

Nuclear fusion hydrogen burning steps

P+p. D+e-+neutrino+energy D+P. 3He+proton+energy 3he+3He. 4he +2protons +photon+energy

Incredibly dense and small. It does not give off much light and would have gone undetectedif some of them didn't exhibit unusual behavior on the radio part of the spectrum

Neutron star

Strong magnetic field+rapid rotation

Pulsar

Discovered the nuetron star in 1976

Jocelyn bell

50 times more massive than the sun The degeneracy pressure of neutrons is overcome and star collapses We don't know how often it will form

Black holes

In hydrogen burning what is the last material it is going to create

Iron

A group of stars that form a pattern

Constellation

Brightest constellation

Crux( southern cross)

Greatest number of visible stars

Centaurus

Largest constellation

Hydra( water snake)

Smaller apparent stars

Asterism

Biology

The sun provides virtually all of the energy for life on earth

Health and safety

Exposure to the u. V Rays emitted by the sun increased the risk of skin cancer

Geology

The Suns radiant energy drives the earths weather patterns

Hertzprung-Russell diagram

Measures the luminosity and temperature of different stars

The temp. Of hr diagram

Kelvin

The great dark spot is found ?

Neptune

Great white spot?

Saturn

Great Red Spot

Jupiter

A region in the solar system beyond the orbit of Neptune containing asteroids comets and ice

Kuiper belt

Who invented the telescope

Hans lippershey

Asteroid that can kill us

Vestra

Dwarf planet

Ceres

Candidates of becoming planets

Vestra 2005 fy9 orcas Sedna 2003 el 61 Pallas hygiea 2002 AW 197 Varuna ixion

Uniqueness of Pluto

Orbit has the highest eccentricity distance from the sun varies more than other planets Plane of orbit of Pluto is tilted Charon is the largest satellite compared to its mother planet Show characteristics of terrestrial planets

Second Quiz Flashcards

(62 cards)