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Astronomy

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by

Magnus Forsberg

on 29 February 2016

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Transcript of Astronomy

Astronomy
Heliocentric worldview (Sun in the center)
Mercury
Venus
Earth
Mars

(Asteroid belt)

Jupiter
Saturn
Uranus
Neptune

(Pluto)
Earth day
It takes the earth 24h to spin around its own axis.

The face of the earth that is facing the sun experience day.

The face of the earth facing away from the sun experience night.
Earth year
(Seasons)
Earth has a tilt on its axis of 23.4 degrees

The hemisphere facing the sun experience summer.

The hemisphere facing away from the sun experience winter.

As the earth is orbiting the sun, the seasons change accordingly


Earths natural satellite - The moon
The moon is orbiting the earth every 29 days.

The moon spins around its own axis every 29 days

This means that we always see the same face of the moon.
Solstice and equinox (NH)
Summer solstice (June 21)
Winter solstice (December 21)

Vernal equinox (March 21)
Autumnal equinox (September 23)
Phases of the moon

New moon
Half moon (Waxing)
Full moon
Half moon (Waning)
Eclipses
Solar eclipse
Lunar eclipse
Umbra
Penumbra
Sun
Core
Photosphere
Chromosphere
Corona

Nuclear fusion
Solar wind (Aurora Borealis)
Sunspots
Prominence
Flare
Full transcript