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Planets: Classification, Appearance, and Characteristics, Study notes of Astronomy

South Carolina State University (SCSU)Astronomy

An overview of the planets, their classification, general characteristics, and unique features. It covers the definition of a planet, the list of planets, their order from the sun, relative sizes, distances, and properties for description and classification. The document also discusses methods of studying planets and includes images for easier understanding.

Typology: Study notes

Pre 2010

Uploaded on 08/18/2009

koofers-user-7h6
koofers-user-7h6 🇺🇸

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Overview of the
Overview of the
Planets
Planets
PSC 203
PSC 203
Overview
Overview
In this section:
In this section:
How are the planets categorized?
How are the planets categorized?
What are the general characteristics of the
What are the general characteristics of the
planets?
planets?
Planets Review
Planets Review
General Definition of a planet?
General Definition of a planet?
List the planets
List the planets
Order from Sun
Order from Sun
Relative Sizes of the planets
Relative Sizes of the planets
Distances between planets
Distances between planets
Other properties
Other properties
What properties could we use to describe
What properties could we use to describe
and classify the planets?
and classify the planets?
Brainstorming …
Brainstorming …
Observations
Observations
How do we study the planets?
How do we study the planets?
Reflected sunlight gives images
Reflected sunlight gives images
Space probes collect data
Space probes collect data
Orbital data from moons
Orbital data from moons
Computer models to test ideas
Computer models to test ideas
pf3
pf4
pf5

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Download Planets: Classification, Appearance, and Characteristics and more Study notes Astronomy in PDF only on Docsity!

Overview of the Overview of the

Planets Planets

PSC 203 PSC 203

Overview Overview

^ In this section:In this section:

 How are the planets categorized?How are the planets categorized?

 What are the general characteristics of theWhat are the general characteristics of the

planets?planets?

Planets ReviewPlanets Review

 General Definition of a planet?General Definition of a planet?

 List the planetsList the planets

 Order from SunOrder from Sun

 Relative Sizes of the planetsRelative Sizes of the planets

^ Distances between planetsDistances between planets

Other properties Other properties

 What properties could we use to describeWhat properties could we use to describe

and classify the planets?and classify the planets?

 Brainstorming …Brainstorming …

ObservationsObservations

 How do we study the planets?How do we study the planets?

 Reflected sunlight gives imagesReflected sunlight gives images

 Space probes collect dataSpace probes collect data

^ Orbital data from moonsOrbital data from moons

 Computer models to test ideasComputer models to test ideas

Classical CategoriesClassical Categories

^ Inner Terrestrial PlanetsInner Terrestrial Planets

 Earth like planetsEarth like planets

 Mercury, Venus, Earth, MarsMercury, Venus, Earth, Mars

 Outer Jovian PlanetsOuter Jovian Planets

 Jupiter like planetsJupiter like planets

 Jupiter, Saturn, Uranus, NeptuneJupiter, Saturn, Uranus, Neptune

Terrestrial PlanetsTerrestrial Planets

^ Relatively small sizeRelatively small size

 Rocky compositionRocky composition

 Relatively warmRelatively warm

 Few if any moonsFew if any moons

Jovian Planets Jovian Planets

 Relatively large sizeRelatively large size

 Gaseous compositionGaseous composition

 Relatively coldRelatively cold

 Many moons and ringsMany moons and rings

Why??? Why???

 What causes this pattern of propertiesWhat causes this pattern of properties

between the terrestrial and jovian planets?between the terrestrial and jovian planets?

 Your thoughts …Your thoughts …

 Discussion …Discussion …

^ To be continued …To be continued …

Appearance Appearance

 Each planet has a different appearanceEach planet has a different appearance

^ WorldWorld--wide telescope tourwide telescope tour

 GoogleGoogle image searchimage search

SaturnSaturn UranusUranus Neptune Neptune CharacteristicsCharacteristics

 Each planet has some characteristics thatEach planet has some characteristics that

help it stand out from the others. help it stand out from the others.

 List some that you know of as we get toList some that you know of as we get to

each one… each one…

Mercury Mercury

 Class provided answers…Class provided answers…

 Looks like the moonLooks like the moon

 No atmosphereNo atmosphere

^ Lots of cratersLots of craters

 Wide temperature variation between light andWide temperature variation between light and

dark sidesdark sides

Venus Venus

 Class provided answers…Class provided answers…

 Very hot (can melt lead)Very hot (can melt lead)

 Clouds of Sulfuric acid (light yellow color)Clouds of Sulfuric acid (light yellow color)

^ Volcanoes on surfaceVolcanoes on surface

 Carbon dioxide atmosphereCarbon dioxide atmosphere

EarthEarth

^ Class provided answers…Class provided answers…

 Home to all known lifeHome to all known life

 Liquid waterLiquid water

 Oxygen in atmosphereOxygen in atmosphere

Mars Mars

^ Class provided answers…Class provided answers…

 Red appearanceRed appearance

 Thin atmosphereThin atmosphere

 Old mountainsOld mountains

^ Frozen water ice and dry iceFrozen water ice and dry ice

 Indications of warmer pastIndications of warmer past

Jupiter Jupiter

 Class provided answers…Class provided answers…

 Largest planetLargest planet

 MultiMulti--colored bands of cloudscolored bands of clouds

 Great red spot hurricaneGreat red spot hurricane

 Many other swirling stormsMany other swirling storms

SaturnSaturn

 Class provided answers…Class provided answers…

 Bright rings (ice crystals)Bright rings (ice crystals)

 Light yellow color (ammonia clouds)Light yellow color (ammonia clouds)

 Faint bands show stormsFaint bands show storms

Uranus Uranus

 Class provided answers…Class provided answers…

 Pale blue color (methane)Pale blue color (methane)

 Rotates on sideRotates on side

^ Faint bands in atmosphereFaint bands in atmosphere

Neptune Neptune

 Class provided answers…Class provided answers…

 Dark blue color (methane)Dark blue color (methane)

 Noticeable storms and cloud bandsNoticeable storms and cloud bands

^ PartialPartial^ tilttilt