Astronomy Chapters 3-4

Question 1

What are the two different types of light-detecting cells?

Answer 1

Rods and Cones

Question 2

Rods are far more sensitive to ( ) than cones, and are thus able to detect much fainter objects.

Answer 2

light

Question 3

When looking at faint objects through a telescope, you must avoid looking ( ) a the the object.

Answer 3

directly

Question 4

What is the light sensitive chemical that rods contain?

Answer 4

rhodopsin

Question 5

Using a ( ) ( ) at night helps you see without impacting your dark-adapted vision.

Answer 5

Red light

Question 6

As a general guideline, it takes about how many minutes for your eyes to dark adapt?

Answer 6

30 minutes

Question 7

What food helps improve night vision because of the carotene in them?

Answer 7

carrots

Question 8

Stars are based on their ( ) and the ( ) in which they are found.

Answer 8

brightness, constellation

Question 9

The constellation Orion is mentioned in what biblical book dating back to about 200 B.C.?

Answer 9

Job

Question 10

What are the groups of bright stars that are not one of the official 88 constellations called?

Answer 10

Asterisms

Question 11

Mintaka is a blue bright giant, so one of the ( ), ( ) stars in the night sky.

Answer 11

hottest, brightest

Question 12

Because its light fades and grows, Algol is often called the what?

Answer 12

Demon Star

Question 13

What is the brightest visible star in Earth’s nighttime sky?

Answer 13

Sirius

Question 14

Since it is in the constellation Canis Major, Sirius is sometimes referred to as what?

Answer 14

the Dog Star

Question 15

In mid-April, the constellation that dominates the evening sky is ( )

Answer 15

Leo

Question 16

Polaris or the ( ) ( ) is the one star that doesn’t move noticeably with the time of night of time of year.

Answer 16

North Star

Question 17

What is the center star in the handle of the Dipper?

Answer 17

Mizar

Question 18

What used to be the North Star around the year 2800 B.C

Answer 18

Thuban

Question 19

The constellation ( ) is dominated by the bright red supergiant Antares.

Answer 19

Scorpius

Question 20

The summer ( ) is made up of Vega, Altair, and Deneb.

Answer 20

Triangle

Question 21

The brightest star in the constellation Cygnus is ( ), which means the “tail”

Answer 21

Deneb

Question 22

The constellation Corona Autralis is also know as what?

Answer 22

Southern Crown

Question 23

The great ( ) is comprised of Markab, Scheat, Algenib, and Alpheratz

Answer 23

Square

Question 24

The constellation Andromeda is shaped like a curved what?

Answer 24

Bullhorn

Question 25

At a distance of 2.9 million light years, ( ), or “the Andromeda Galaxy,” is the farthest and largest object that can easily be seen with the unaided eye.

Answer 25

M31