astro 122 review

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The age of the universe is _________ billion years. Correct!

13.8 billion (14 billion is an acceptable answer)

How many planets are in our Solar System (as of October 2020)?

14 - 8 planets - 6 dwarf

how hot is the core of the sun

15 million degrees

How fast is the speed of light?

186,000 miles per second

How many miles up does the ISS orbit the Earth?

250- eugene to seattle

In the "Grapefruit Scale", how far away is Earth from the Sun?

2500 miles (washington DC)

How big is the Moon?

2500 miles, size of the continental US, 1/4 of the earth

How many light-years away is our nearest neighbor star?

4

How long ago did life get started on Earth?

4 billion years ago

How hot is the photosphere?

6000 degrees

Outer space is [blank1] miles straight up. Correct!

62

It takes light this many minutes to travel between the Sun and the Earth.

8 light minutes

How many constellations are there in the entire sky?

88

How much of the Earth and Moon is lit up by sunlight right now?

ALWAYS half

he angular size of an object stays the same at all times.

false: changes as it moves closer or farther away from observer

Mount Everest is the tallest mountain in the Solar System.

false: olympus mons

Mars is outside the habitable zone of the Sun.

false; still in just on the outer most part

exoplanets are too far away to take photos of.

false; they appear as dots

What is the process that powers the Sun (and all stars)?

fusion

What is the purpose of a laser guide star system?

it creates an artificial star that a telescope can lock onto which helps adaptive optics systems

Pluto is now designated as a member of the:

kupiers belt

refracting telescopes use

lenses

Pluto is the largest object in the Kupier belt.

false

How hot is the corona

1 million degrees

How many galaxies are visible in the Hubble Ultra Deep Field (HUDF)?

10,000

How large is the diameter of the Milky Way galaxy?

100,000 light years

How many Earths will fit across the diameter of the Sun?

109

How many telescopes are on top of Maunakea?

13

What is the largest type of solar event we discussed?

Coronal mass ejection

Telescopes in space (like Hubble) produce high-quality images because they are closer to the objects they are observing.

FALSE- remember how vast the universe is

There is a spacecraft in orbit around Saturn right now.

False; cassini is dead- shot through plumes of enceladus

Nuclear energy that powers the sun is called

Fusion

What is SETI?

Search for Extraterrestrial Intelligence

what causes seasons

The tilt of the Earth's axis

Humans have sent maps to Earth out into space as part of SETI.

True

We have discovered water on Mars.

True

There is a planet in our solar system inhabited completely by robots.

True. there are rovers on planets

segmented mirrors

a large mirror comprised of smaller mirrors

What kind of material did Miller and Urey find in the "sludge" they made in their experiment?

amino acids

The single biggest obstacle to interstellar travel is:

distance between stars

Adaptive optics is technology that helps correct for distortions caused by atmospheric [blank1].

distortion

The plane of the Solar System is called the:

ecliptic

When we see the Milky Way in the sky from Earth, we see it in a __________ orientation.

edge on

what are the two kinds of galaxies?

elliptical and spiral

reflecting telescopes use

mirrors

When is the Sun the highest in the sky?

noon at summer solistice

Can the biggest telescopes in the world observe the entire Universe?

not even close

What is the "surface" of the Sun called?

photosphere

What is special about the moon Enceladus?

potential life on it, undersurface ocean

what cant be involved when dealing with science?

pseudoscience/metaphysics and divine intervention

what are the two different types of telescopes

refracting and reflecting

What is the habitable zone?

region around a star where liquid water could be present on a planet's surface

What is the name scientists have given to the very first life form on Earth?

root

What was the first research result from the Robbins telescope?

supernova

What quantity determines how an object will emit radiation?

temperature

where does fusion occur?

the core

the solistice represents when...

the sun is the highest and lowest in the sky

The Hubble Space Telescope can take pictures of individual stars in the Andromeda galaxy.

true

What two regions of the EM spectrum do these windows allow to pass through the atmosphere?

visible and radio waves

Are there always constellations in the sky?

yes


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