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II. _________ of the these Apparent Motions: a/ The Sun moves across the sky at ________due to PowerPoint PPT Presentation


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Causes. II. _________ of the these Apparent Motions: a/ The Sun moves across the sky at ________due to Earth's _______________. b/ Its path changes each day due to a ________________ of 2 Reasons:. 15 0 /h. rotation. combination. Reason #1 : ________________________________________.

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II. _________ of the these Apparent Motions: a/ The Sun moves across the sky at ________due to

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Ii of the these apparent motions a the sun moves across the sky at due to

Causes

II. _________ of the these Apparent Motions:

a/ The Sun moves across the sky at ________due to

Earth's _______________.

b/ Its path changes each day due to a ________________

of 2 Reasons:

150/h

rotation

combination

Reason #1: ________________________________________

Revolution of Earth around the Sun

definitions:

the orbiting of one celestial body

around another

Revolution - ___________________________________

___________________________________

the time required to complete

one revolution

period of - ___________________________________

revolution ___________________________________


Ii of the these apparent motions a the sun moves across the sky at due to

view from above:

(not to scale)

ellipse

Sun

E

foci

10

___/day

3600

1 revolution = _________

period of revolution = _________

365 days

0.990/day

10/day

3600

rate of = ________________ = ________

revolution ≈ _______

365 days


Ii of the these apparent motions a the sun moves across the sky at due to

tilted

Reason #2: Earth's axis stays ____________ at an angle

of _________with respect to its _______________________

_______.

orbit around the

23.50

Sun

spring (vernal)

_______________

23.50

equinox

E

Sun

winter

__________

E

E

summer

__________

solstice

solstice

E

fall (autumnal)

_______________

equinox

Rotation axis


Ii of the these apparent motions a the sun moves across the sky at due to

Summer

Solstice

in NY –

Sun is ________

_______________

_______________

Z

almost

overhead

(close to Z)

NYS

Sun's

Rays

Z

Winter

Solstice

in NY –

Sun is ________

_______________

_______________

NYS

Sun's

Rays

lower

in the sky

(far from Z)


Ii of the these apparent motions a the sun moves across the sky at due to

completes 1 arc

In Sum: 1/ Rotation  Sun __________________________

2/ Axis tilt + revolution  ___________paths on

___________ days

3/ Earth is spherical  arcs are _____________

different

different

tilted

Polaris

Z

altitude

=

latitude

W

S

N

E


Ii of the these apparent motions a the sun moves across the sky at due to

III. Consequences

Earth's night side

faces in different directions during the year, making

it possible to see different constellations at night.

A. Because of revolution, _________________________

____________________________________________________

____________________________________________________

A group of stars that form patterns

of imaginary things such as animals, heroes and

mythical gods, and other objects

Constellation: - ___________________________________

___________________________________________________

___________________________________________________

pattern

seen from

Earth

Actual stars of

constellation are

_______________

_______________

___________

___________

_________:

at different

distances

Earth


Ii of the these apparent motions a the sun moves across the sky at due to

midnight

away from the Sun

At ____________ , you are looking _______________________

summer


Ii of the these apparent motions a the sun moves across the sky at due to

Sagittarius,

Scorpius

Capricornus


Ii of the these apparent motions a the sun moves across the sky at due to

midnight

away from the Sun

At ____________ , you are looking _______________________

summer

fall


Ii of the these apparent motions a the sun moves across the sky at due to

Pisces

Aquarius

Aries


Ii of the these apparent motions a the sun moves across the sky at due to

midnight

away from the Sun

At ____________ , you are looking _______________________

summer

winter

fall


Ii of the these apparent motions a the sun moves across the sky at due to

Cancer

Gemini

Taurus


Ii of the these apparent motions a the sun moves across the sky at due to

midnight

away from the Sun

At ____________ , you are looking _______________________

spring

summer

winter

fall


Ii of the these apparent motions a the sun moves across the sky at due to

Virgo

Libra

Leo


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