Perspective

Question 0

what is our cosmic address

Answer 0

planet earth, solar system inc moons asteroids and icy comets. Milky Way galaxy, local group,local super cluster, universe

Question 1

word meaning earth centered

Answer 1

Geocentric

Question 2

what is meaning of universe

Answer 2

all matter and energy and voids

Question 3

what is an AU

Answer 3

astronomical unit is earth’s average distance from the sun, 150 million kilometers=93 million miles. for use in our solar system

Question 4

what is ly

Answer 4

a light year. distance light can travel in one year

;10 trillion kilometers or 6 trillion miles. for distances of stars and galaxies

Question 5

Estimate of the age of the universe

Answer 5

14 Billion years old.

Question 6

The distance of 14 Billion light years marks what

Answer 6

The Boundary or Horizon of our Observable universe

Question 7

What is the observable universe

Answer 7

The portion of the entire univers that we can potentially observe. No limit on the size of the universe.

Question 8

MVeMJSUN

My very energetic Mother just served us nuts

Answer 8

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Question 9

what is the classification of Pluto and Eris since when

Answer 9

Dwarf planets. 2006 pluto was demoted. 2005 Eris discovered.

Question 10

What do you use when working with powers of ten

Answer 10

Scientific notation

Question 11

Our solar system is a ____ star system

Answer 11

Single

Question 12

——- and —— ——- show regions where ——– won over expansion

Answer 12

Galaxy and Galaxy Clusters gravity.

Question 13

surrounds the Earth with Constellations that have definite borders

Answer 13

Celestial sphere. We see only half of the dome on our LOCAL SKY

Question 14

What is the Horizon

Answer 14

Boundary between earth and sky

Question 15

What is the Zenith

Answer 15

Point directly overhead

Question 16

What is Meridian?

Answer 16

Runs due north and due south through Zenith

Question 17

What makes stars appear to circle around the earth?

Answer 17

Earth Rotation

Question 18

If a stars complete circle is above the horizon it is said to be

Answer 18

Circumpolar

Question 19

The constellations vary with ?

Answer 19

Latitude. Because your LATITUDE determines the orientation of your horizon relative to the celestial sphere.

Question 20

What causes the seasons?

Answer 20

The tilt of Earths AXIS. Points in same direction always so as we go around the sun different parts receive more sun at different times.

Question 21

What is precession?

Answer 21

The 26,000. Yr cycle of our axis. Remains at 23.5 degree. Does Not affect seasons.
Does change identity of North Star and shifts the location of solstices and equinoxes

Question 22

The ? Of the moon depends on its ? Relative to the sun as it orbits earth

Answer 22

Phase. Position. The side facing the sun is always illuminated , but from Earth we see varying combos of the illuminations and dark faces.

Question 23

Solar eclipse

Answer 23

Moon blocks our sun

Question 24

Lunar eclipse

Answer 24

Earth shadow on the moon. We in middle

Question 25

Because the moons orbit is slightly ? to the ecliptic plane , we ? See an eclipse at every full and new moon

Answer 25

Inclined . Do Not see.

Question 26

Planets generally move ? Relative to the stars

Answer 26

East

Question 27

When Earth passes or is passed by other planets

Answer 27

Apparent retrograde motion. They seem to go backward. Ancients did not understand this because they thought earth was center.

Question 28

Greeks rejected the idea that earth goes around sun because they could not detect ?

Answer 28

Stellar Parallax

Question 29

Slight apparent shifts in stellar positions over a year

Answer 29

Stellar Parallax. The Greeks did not know that the stars were so far away.

Question 30

A gas consisting of electrons and ions

Answer 30

Plasma

Question 31

Atom with positive or negative charge

Answer 31

Ion

Question 32

Your altitude =

Answer 32

Your latitude

Question 33

Who patented the telescope

Answer 33

Hans Lippershey in1608. Galileo perfected it. made it into a tool

Question 34

What are the 3 objections of Aristole's views from Galileo

Answer 34

1. earth could not be moving, birds would fall behind. How: Objects in motion stay in motion until a force stops them. 2. Heavens must be perfect Tyco showed supernova and comets, things change. G with telescope saw sun spots, shadows of craters on moon (not smooth) 3. Absence of stellar parallax showed Milky Way and thousands of far away stars

Question 35

Nails in earth centered theory

Answer 35

G with telescope found four moons orbiting Jupiter. The current belief was our moon could not stay with a moving Earth Venus went thru phases.

Question 36

Whose Laws predicted Mercury transit across the Sun

Answer 36

Kepler German