
Botjes Planetarium
Botjes' table of planetary data
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English translation and comments:
Motion
of the planets around the sun.
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
|
Mercury |
8 |
1.65 |
9.65 |
6.35 |
46° |
75° |
7° |
1.9 |
2111.241h |
2111.241 h |
|
Venus |
15 |
0.15 |
15.15 |
14.85 |
75° |
127° |
3°23' |
1.7 |
5392.695 h |
5392.692 h |
|
Earth |
20 2/3 |
0.35 |
21.03 |
20 1/3 |
- |
100° |
- |
- |
8765.816 h |
8765.8125 h |
|
Mars |
31 1/2 |
3 |
34.5 |
28.5 |
48° |
333° |
1°51' |
2 |
16,489 h |
16,486.305 h |
|
Jupiter |
107 1/2 |
5.25 |
111.85 |
102.35 |
99° |
12° |
1°19' |
5 |
103,930.6 h |
103,934.236 h |
|
Saturn |
197 |
11.2 |
208.2 |
185.8 |
112° |
90° |
2°29' |
17.2 |
257,873 h |
257,926 1/2 h |
|
Uranus |
396/ 223 |
18.3 |
241.3 |
204.7 |
73° |
168° |
0°46' |
5.2 |
30,656 d |
30,686 d |
Column headings:
1. Planet name
[
2. Average distance (mm on
the planetarium)
[The planetarium distances
are those of the actual solar system scaled by 7.2 trillion, excepting Uranus.
The first value for Uranus is
the correct scaled number, the second value is the
44% smaller number actually used so that it fit on the dial.]
3. Half the range of distance
(mm)
4. Maximum distance (mm)
5. Minimum distance (mm)
6. Ascending node (degrees)
[Three columns in Botjes'
table that have been omitted here may be computed from the ascending node: descending
node (add 180°), the highest position (add 90°), and the lowest position (add 270°).]
7. Longitude of perihelion
(degrees)
[Botjes' table also included
a column for aphelion, which is 180° plus perihelion.]
8. Inclination of orbit to
ecliptic (degrees and minutes)
9. Full range of vertical
height (mm)
10. Orbital period in the
planetarium (hours or days)
11. Orbital period from astronomical
tables (hours or days)
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Orbits of the planets |
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Botjes planetarium home page |