Astronomy Flashcards by Tin De Castro | Brainscape

Q

Sun shines all day and all night

A

Midnight Sun

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Q

Planets mythology

A

Romans

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Q

Conventional Paradigm

A

according to science / million of years

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Q

Genesis Paradigm

A

Biblical / specific time

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Q

radioactive decay

A

Weak nuclear force

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Q

holds nucleus of atoms

A

Strong nuclear force

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Q

4 fundamental forces

A

Gravity
Electromagnetic
Weak
Strong

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Q

type of force found in SUN

A

Weak nuclear force

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Q

“exotic”
interact with ordinary matter

A

Dark matter

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Q

negative pressure
repelling force

A

Dark energy

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Q

Types of universe

A

Flat
close
open
accelerating

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Q

Our universe is____

A

Accelerating universe
(based on Big Bang)

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Q

STEADY STATE THEORY

WHO

A

Fred Hoyle

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Q

spaces filled as universe expands

A

Steady State Theory

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Q

INFLATIONARY THEORY

WHO

A

Alan Guth

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Q

OSCILLATING/ CYCLIC / PULSATING THEORY

WHO

A

Paul Steinhardt

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Q

Beginning and end

Bigbang + Big Crunch

A

Oscillating Theory

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Q

MOON PHASE CYCLE

DAYS

A

29.5 days

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Q

MOON ORBIT AROUND EARTH

DAYS

A

27.3 days

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Q

Spiral Galaxy

A

Milky Way

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Q

Elliptical Galaxy

A

Andromeda

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Q

Actual brightness of star

A

Absolute Magnitude

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Q

brightness received on Earth from a star

A

Apparent Magnitude

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Q

PLANET

retrograde motion

A

Venus

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Q

Mars moons

A

Phobos and Deimos

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Q

Many moons

A

Saturn

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Q

Fastest planet

A

Jupiter

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Q

Galilean moons what planet

A

Jupiter

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Q

Great dark spot

A

Neptune

Q

rotating on its side

A

Uranus

Q

large known dwarf planet

A

Eris

Q

310 years to complete 1 orbit

A

Makemake

Q

lies beyond neptune

A

Kuiper belt

Q

outermost region of solar system

A

Oort cloud

Q

Precise observer
Stellar parallax

A

Tycho Brahe

Q

3 Laws of planetary motion

A

Law of Elliptical Orbits
Law of Equal Areas
Law of Harmonic Motion

Q

First star catalog

A

Hipparchus

Q

First to spot comet Halley

A

Charles Messier

Q

dark topographical features that can be observed on the lunar surface

A

maria

Q

earth shape

A

irregular spheroid

Q

orbital speed

A

fastest in january

Q

northern winter shadow

A

longest

Q

earth rotates evidence

A

Coriolis effect

Q

constellation rose at 8pm, two weeks later…

A

7 pm

Q

at north, the sun appears overhead

A

never

Q

AM

A

before the median

Q

why do we see same side of the moon

A

rotation and revolution is the SAME

Q

nebular model

A

supernova

Q

slightly larger than earth

A

Mercury

Q

short period comets

A

Kuiper belt

Q

No moons

A

Mercury and Venus

Q

most mass of the solar system

A

Sun

Q

Rotate on side

A

Uranus

Q

too cold for water to exist in liquid

A

Mars

Q

Jupiter size

A

318x more massive than Earth

Q

most rapid when closer to the sun

what law

A

kepler law

Q

universe age

A

13.7 Billion

Q

Solar system age

A

4.5 billion

Q

Earth age

A

4.5 billion

Q

Big bang theory

A

Friedman
Lamaitre

Q

The universe has no beginning and end

A

Steady state Theory

Q

exponential expansion

A

Inflation theory

Q

father of astronomy

A

Galileo

Q

discover ring of Saturn

A

Galileo

Q

Vortex theory

A

Descartes

Q

Collision theory

A

Buffon

Q

Nebular Theory (pancake)

A

Kant-Laplace

Q

scientific name of Sun

A

Sol

Q

Sun is a ____

A

yellow dwarf

Q

discover dark matter

A

Fritz Zwicky

Q

coined “dark energy”

A

Turner