Download presentation
Presentation is loading. Please wait.
Published byMyron Davidson Modified over 8 years ago
3
Did You Know…
4
…That the Earth wobbles on its axis…?
5
It’s called…
6
Precession
7
It’s called… Precession (Both Weebles and the Earth wobble, but neither falls down…)
8
Earth completes 1 full cycle of wobble every 26,000 years.
9
Like This….
11
Notice that the direction the North Pole points is changing.
13
Precession- The wobbling motion of the Earth on its axis.
14
1 wobble takes 26,000 years
15
Question
16
Which star will be the North Star in the year 14,000 AD? Question
17
Answer
18
Answer Vega !
19
Look Again
21
Vega – the polar star in 14,000 AD
22
Look Again
24
The Zodiac
26
WestEast
27
Planet Moon WestEast
28
Planet Moon WestEast
29
Planet Moon The Zodiac- The narrow belt, 18 o wide, which includes the paths of the planets and the Moon. WestEast
30
Planet Moon The Zodiac- The narrow belt, 18 o wide, which includes the paths of the planets and the Moon. The Ecliptic lies at the center of the Zodiac WestEast
31
Planet Moon The Zodiac- The narrow belt, 18 o wide, which includes the paths of the planets and the Moon. The Ecliptic lies at the center of the Zodiac WestEast
32
Planet Moon The Zodiac- The narrow belt, 18 o wide, which includes the paths of the planets and the Moon. The Ecliptic lies at the center of the Zodiac WestEast
33
Planet Moon WestEast
34
Planet Moon This is what we see when viewing the Zodiac from Earth. WestEast
35
Planet Moon WestEast
36
Planet Moon WestEast But when viewing from space,
38
But when viewing from space, then the Zodiac looks like this:
41
The Zodiac
46
The Ecliptic
50
The Zodiac represents the middle belt of the Celestial Sphere.
52
The belt is divided into 12 equal segments,
56
The belt is divided into 12 equal segments, each called a “sign” of the Zodiac.
58
A “Sign of the Zodiac” is only an area of space in the sky.
60
Don’t confuse the “Signs of the Zodiac” with the Constellations of the Zodiac.
62
Since the entire circle has 360 o, then
63
Since the entire circle has 360 o, then each sign of the Zodiac is 30 o wide.
64
30 o wide
65
Since the entire circle has 360 o, then each sign of the Zodiac is 30 o wide.
68
The Zodiac has its beginning with the Sign of Aries.
70
The Sign of Aries is defined as the portion of the daytime sky over the Earth on the first day of spring.
72
Vernal Equinox The Sign of Aries is defined as the portion of the daytime sky over the Earth on the first day of spring.
73
Vernal Equinox The Sign of Aries is defined as the portion of the daytime sky over the Earth on the first day of spring.
74
Vernal Equinox
75
The Sign of Aries is defined as the portion of the daytime sky over the Earth on the first day of spring. Vernal Equinox
76
The Sign of Aries is defined as the portion of the daytime sky over the Earth on the first day of spring.
77
Vernal Equinox
78
The Sign of Aries is defined as the portion of the daytime sky over the Earth on the first day of spring.
79
Vernal Equinox
80
The Sign of Aries is defined as the portion of the daytime sky over the Earth on the first day of spring.
81
Vernal Equinox
82
Of course, each Sign of the Zodiac will contain stars.
83
Taurus AriesPisces Aquarius Vernal Equinox Of course, each Sign of the Zodiac will contain stars.
84
Taurus AriesPisces Aquarius Vernal Equinox
85
Taurus AriesPisces Aquarius Vernal Equinox Shown are four Constellations of the Zodiac, located in four “Signs of the Zodiac”.
86
Taurus AriesPisces Aquarius Vernal Equinox
87
Taurus AriesPisces Aquarius Vernal Equinox Due to precession of the Earth on its axis, the Constellations no longer match the Signs of the Zodiac.
88
For Example…
90
The Sign of Aries now contains the Constellation of Pisces
98
Here’s why…
99
Vernal Equinox
100
Taurus AriesPisces Aquarius Vernal Equinox
101
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries
102
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 100 B.C.
103
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 100 B.C. In 100 B.C., the Sign of Aries contained the Constellation of Aries.
104
Taurus Aries Pisces Aquarius Vernal Equinox Sign of Aries 100 B.C. In 100 B.C., the Sign of Aries contained the Constellation of Aries.
105
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 100 B.C. In 100 B.C., the Sign of Aries contained the Constellation of Aries.
106
Taurus Aries Pisces Aquarius Vernal Equinox Sign of Aries 100 B.C. In 100 B.C., the Sign of Aries contained the Constellation of Aries.
107
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 100 B.C. In 100 B.C., the Sign of Aries contained the Constellation of Aries.
108
Taurus Aries Pisces Aquarius Vernal Equinox Sign of Aries 100 B.C. In 100 B.C., the Sign of Aries contained the Constellation of Aries.
109
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 100 B.C. In 100 B.C., the Sign of Aries contained the Constellation of Aries.
110
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 100 B.C.
111
Taurus AriesPisces Aquarius
112
Taurus AriesPisces Aquarius
113
Taurus AriesPisces Aquarius
114
Taurus AriesPisces Aquarius Vernal Equinox
115
Taurus AriesPisces Aquarius Vernal Equinox
116
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries
117
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries Today
118
Taurus AriesPisces Aquarius …But due to precession, today the Vernal Equinox occurs a month earlier. Vernal Equinox Sign of Aries Today
119
Taurus AriesPisces Aquarius Vernal Equinox Today Sign of Aries
120
Taurus AriesPisces Aquarius Vernal Equinox …and the Sign of Aries now contains the Constellation of Pisces Sign of Aries Today
121
Taurus Aries Pisces Aquarius Vernal Equinox …and the Sign of Aries now contains the Constellation of Pisces Today Sign of Aries
122
Taurus AriesPisces Aquarius Vernal Equinox …and the Sign of Aries now contains the Constellation of Pisces Today Sign of Aries
123
Taurus Aries Pisces Aquarius Vernal Equinox …and the Sign of Aries now contains the Constellation of Pisces Today Sign of Aries
124
Taurus AriesPisces Aquarius Vernal Equinox …and the Sign of Aries now contains the Constellation of Pisces Today Sign of Aries
125
Taurus Aries Pisces Aquarius Vernal Equinox …and the Sign of Aries now contains the Constellation of Pisces Today Sign of Aries
126
Taurus AriesPisces Aquarius Vernal Equinox …and the Sign of Aries now contains the Constellation of Pisces Today Sign of Aries
127
Taurus AriesPisces Aquarius Vernal Equinox Today
128
Taurus AriesPisces Aquarius
129
Taurus AriesPisces Aquarius
130
Taurus AriesPisces Aquarius
131
Taurus AriesPisces Aquarius Vernal Equinox
132
Taurus AriesPisces Aquarius Vernal Equinox
133
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries
134
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D.
135
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. As the Earth continues to precess on its axis,
136
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. As the Earth continues to precess on its axis, the Vernal Equinox will continue to shift.
137
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D.
138
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. This will also cause the Sign of Aries to shift.
139
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D.
140
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. In the year 4200 A.D., the Sign of Aries will contain the Constellation of Aquarius.
141
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. In the year 4200 A.D., the Sign of Aries will contain the Constellation of Aquarius.
142
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. In the year 4200 A.D., the Sign of Aries will contain the Constellation of Aquarius.
143
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. In the year 4200 A.D., the Sign of Aries will contain the Constellation of Aquarius.
144
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. In the year 4200 A.D., the Sign of Aries will contain the Constellation of Aquarius.
145
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. In the year 4200 A.D., the Sign of Aries will contain the Constellation of Aquarius.
146
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D. In the year 4200 A.D., the Sign of Aries will contain the Constellation of Aquarius.
147
Taurus AriesPisces Aquarius Vernal Equinox Sign of Aries 4200 A.D.
148
Taurus AriesPisces Aquarius
149
Taurus AriesPisces Aquarius So when will the Sign of Aries again contain the Constellation of Aries?
150
Taurus AriesPisces Aquarius
151
Taurus AriesPisces Aquarius Answer: in 24,000 more years.
152
Taurus AriesPisces Aquarius
156
Constellations of the Zodiac
157
Which constellation is in the daytime sky in May?
158
Constellations of the Zodiac Which constellation is in the daytime sky in May?
159
Constellations of the Zodiac Which constellation is in the daytime sky in May?
160
Constellations of the Zodiac Which constellation is in the daytime sky in May?
161
Constellations of the Zodiac Which constellation is in the daytime sky in May?
162
Constellations of the Zodiac Which constellation is in the daytime sky in May? Answer: Aries
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.