Exam 1

Question 1

What is the worlds oldest profession?

Answer 1

Astronomy

Question 2

Ancient people used the cycles in the sky to do…

Answer 2

agriculture

Question 3

The connection between the celestial sphere and the earth’s sphere is the…

Answer 3

axis

Question 4

NCP means…

Answer 4

north celestial pole

Question 5

SCP means…

Answer 5

south celestial pole

Question 6

Sun’s yearly path around the celestial sphere as seen from Earth

Answer 6

ecliptic line

Question 7

What causes the ecliptic line?

Answer 7

the orbital motion of the earth

Question 8

Dahlonega’s latitude

Answer 8

34.5 degrees

Question 9

Dahlonega’s longitude

Answer 9

84 degrees W

Question 10

Latitude runs ___ ___. but measures ___ ___

Answer 10

East west, north south

Question 11

Longitude runs ___ ___, but measures ___ ___.

Answer 11

north south, east west

Question 12

The celestial latitude and longitude go around the…

Answer 12

celestial sphere

Question 13

constellations are _____ of the sky

Answer 13

landmarks

Question 14

Star names usually have ____ roots

Answer 14

Arabic

Question 15

Celestial longitude is…

Answer 15

right ascension

Question 16

Zero RA means…

Answer 16

vernal equinox point

Question 17

Right ascension is measured in __ ____ because …

Answer 17

time units; our definition of time is dependent on the right ascension of that day relative to our local meridian.

Question 18

Every __ degrees of celestial longitude, they designate that to be 1 hour of RA, divide by 60 minutes, then 60 seconds.

Answer 18

15

Question 19

Declination is…

___ north, ___ south

Answer 19

Celestial latitude

positive, negative

Question 20

The zenith is located…

Answer 20

directly overhead

Question 21

Local meridian is..

Answer 21

high in the sky, an imaginary great circle

Question 22

The local meridian passes through the…

Answer 22

celestial poles, zenith, and nadir

Question 23

Azimuth starts at the ___ point, goes 360 toward the ___

Answer 23

cardinal, east

Question 24

celestial objects whose angular distance from the NCP is less than the viewer’s latitude never set below the northern horizon

Answer 24

north circus polar objects

Question 25

A.M. means…

Answer 25

ante meridian

Question 26

1 solar day is…

Answer 26

the meridian to meridian crossing time of the sun. the time CAN and does vary.

Question 27

“sundial time”

Answer 27

Local apparent solar time

Question 28

Local apparent solar time:

Answer 28

solar time defined by the position of the real sun’s position relative to an observers local meridian

Question 29

The RA that is lined up with the local meridian

Answer 29

sidereal time

Question 30

the ___ ____ is tilted at 23 degrees

Answer 30

ecliptic line

Question 31

Months are 1

Answer 31

lunar phase cycle

Question 32

Seasons are caused by…

Answer 32

the tilt of the earth’s axis

Question 33

the beginning of each season is defined by…

Answer 33

when the sun reaches a particular position on the celestial sphere as it travels along the ecliptic line