What good is astronomy?What good is astronomy?

CalendarTimeShade

Driving ConditionsHunting

Navigation

Earth OrbitSeasonsSundial

Shaded ParkingGlare

ShadowMoonlight

North South East West

Sun Moon Stars PlanetsSun Moon Stars Planets

When is the sun out?Are all days the same length?

Is the moon out tonightor today?

How are planets different?

InspirationInspirationRomance

Art

Music

Literature

Astronomy/DisasterAstronomy/DisasterDinosaur Extinction

Asteroid ImpactCan we prevent our own extinction?

Astronomy/TragedyAstronomy/TragedyMoonlight

TitanicVisibility of Icebergs

Astronomy/WarfareAstronomy/WarfareGlare

Pearl HarborThey came from the west,

but circled around and attacked from the east.Glare From Rising Sun

Astronomy/WarfareAstronomy/WarfareMoonlight

AfghanistanBombing of Afghanistan

began on moonless night.They couldn’t see US planes.

Astronomy/WarfareAstronomy/WarfareMoonlight

Sinking of Indianapolis

Ship Delivered Atom BombAttack

Defense Against Attack

Method of AstronomyMethod of Astronomy

ObserveSummarize

Model/Theory

Test ModelOther Models

Accepted as Law

HistoryHistoryPrehistoric

Geography

Ancient

Heliocentric Revolution

HistoryHistoryPrehistoric

Geography

Ancient

Helicentric Revolution

PrehistoricPrehistoricConstellations

Celestial Sphere

Seasons/Calendars

Ecliptic

Navigation

Shape of Earth

Size of Earth

ConstellationsConstellationsFamiliar Groupings of

Stars

Named After Mythical Characters

Stars Always in Same Place in Constellation

Constellations Always in Same Order in SkyStars Usually Not Related

ConstellationsConstellations

Move Throughout NightPredictable Motion

PrehistoricPrehistoricConstellations

Celestial Sphere

Seasons/Calendars

Ecliptic

Navigation

Shape of Earth

Size of Earth

PrehistoricPrehistoricConstellations

Celestial Sphere

Seasons/Calendars

Ecliptic

Navigation

Shape of Earth

Size of Earth

Prehistoric AstronomyPrehistoric AstronomyCalendar Development

Observation of Stars at Sunrise/Sunset

Sunset and the StarsSunset and the Stars

EclipticEcliptic

Prehistoric AstronomyPrehistoric AstronomyCalendar Development

Observation of Stars at Sunrise/Sunset

Horizon at Sunrise/Sunset

Sunrise CalendarSunrise Calendar

Prehistoric AstronomyPrehistoric AstronomyCalendar Development

Observation of Stars at Sunrise/Sunset

Horizon at Sunrise/Sunset

Shadows Rise/Noon/set

The Sun and the SeasonsThe Sun and the Seasons

Noon Sun High in Summer

Noon Shadows Short

Noon Sun Low in Winter

Noon Shadows Long

Sunrise and SunsetSunrise and SunsetSunrise in the East?

Sunset in the West?

Noon Shadows

Hours of Daylight

Sunrise and SunsetSunrise and SunsetShaded Parking

Glare

TonightTonightConstellations

Celestial Sphere

Seasons/Calendars

Ecliptic

Navigation

Shape of Earth

Size of Earth

Circumpolar StarsCircumpolar Stars

Geography and Seasons

Geography and Seasons

Arctic Circles

Tropics

Day and Night

TonightTonightConstellations

Celestial Sphere

Seasons/Calendars

Ecliptic

Navigation

Shape of Earth

Size of Earth

Eratosthenes in SyeneEratosthenes in SyeneSunlight

Eratosthenes in SyeneEratosthenes in SyeneSunlight

Reflection

Eratosthenes in AlexandriaEratosthenes in AlexandriaSunlight

EratosthenesEratosthenes

Eratosthenes

Eratosthenes

TonightTonightConstellations

Celestial Sphere

Seasons/Calendars

Ecliptic

Navigation

Shape of Earth

Size of Earth