The night sky pt2

Question 1

Define Zenith

Answer 1

Point directly overhead the observer

Question 2

Define Nadir

Answer 2

Point directly below the observer

Question 3

Define Meridian

Answer 3

Imaginary north-south line based on observer

Question 4

Define azimuth

Answer 4

direction around the horizon from due north

Question 5

Winter solstice(Dec 21)

Answer 5

Point on the ecliptic furthest south of the celestial equator

Question 6

Vernal equinox (Mar 21)

Answer 6

Sun crosses the celestial equator going north

Question 7

Summer solstice (June 21)

Answer 7

Point of the ecliptic furthest north of the celestial equator

Question 8

Autumnal equinox (Sep 22)

Answer 8

Sun crosses the celestial equator going south

Question 9

what stars are seen at the earths north pole

Answer 9

Just circumpolar

Question 10

What stars are seen at the earths equator

Answer 10

Just Rise and set

Question 11

What stars are seen between the poles and equator

Answer 11

Circumpolar, rise and set, and some are not visible

Question 12

how long does precession take

Answer 12

26,000 years