The purpose of this program is to simulate the movement of the planets around the Sun in 3 dimensions i.e. in x, y and z coordinates.
The program is identical as PLANETS except that the z coordinate is included. The program PLANETS is 2 dimensional i.e. only x and y coordinates are included.
For the z coordinate only the angle of the plane in which Mercury moves with the other planets is considered.
The purpose of program PLANET3D is to simulate the movement of different
objects in space in different conditions and in three dimensions i.e.
including the x, y and z coordinates.
The different objects simulated includes at least Sun and Mercury.
In test 5 the whole galaxy is considered one object.
No specific tests were done in 3D
The purpose of this test is to simulate the movement of the planets Mercury and Venus around the Sun.
Now perform the program: PLANETS.EXE
From the Test Selection Display:
The Simulation Test Display consists of three parts:
The top part shows the values of some fixed and some variable parameters. The centre part shows the position of Sun, Mercury and Venus. The bottom part shows the values of some variable parameters.
The centre part shows: In the middle the position of the Sun. To the right of the Sun the planet Mercury The third dot is the planet Venus. After each revolution a new dot is shown. After many revolutions this becomes a circle.
The bottom part consists of five lines.
The simulation shows that the angle of Mercury in one century moves forward. In the beginning this value is highly irregular but slowly it becomes more stable.
In order to see the results from test 2a immediate perform the following:
Now perform the program: PLANETS.EXE
From the Test Selection Display
The value for the forward movement of Mercury after 420 revolutions, influenced by Venus in arc seconds in one century is:
The time of the simulation for delta time of 100 seconds is approximate 420 * 2.3 minutes = 966 minutes = 16 hours.
Return to CHAPTER5.TXT
The purpose of this test is to simulate the movement of the planets Mercury and Earth around the Sun.
The simulation shows that the angle of Mercury in one century moves forward. In the beginning this value is highly irregular but slowly it becomes more stable.
The value for the forward movement of Mercury after 420 revolutions, influenced by Earth in arc seconds in one century is:
The purpose of this test is to simulate the movement of the planets Mercury Venus and Earth around the Sun.
The simulation shows that the angle of Mercury in one century moves forward. In the beginning this value is highly irregular but slowly it becomes more stable.
The value for the forward movement of Mercury after 420 revolutions, influenced by Earth in arc seconds in one century is:
The time of the simulation for delta time of 100 seconds is approximate 420 * 3.7 minutes = 1554 minutes = 26 hours.
The purpose of this test is to simulate the movement of the planets Mercury, Venus, Earth, Mars, Jupiter and Saturn around the Sun. The influence of the three other planets is very small.
Now perform the program: PLANETS.EXE
From the Test Selection Display
The value for the forward movement of Mercury after 420 revolutions, influenced by Earth in arc seconds in one century is:
The time of the simulation for delta time of 100 seconds is approximate 420 * 11 minutes = 4620 minutes = 77 hours.
Return to CHAPTER5.TXT
No specific tests were done in 3D
In order to simulate the different conditions the parameter selection display is used
From the Parameter Selection Display the following parameters can be changed:
0 = Select test display
1 = Set standard parameters.
2 = Screen mode. Valid values are 7,8,9 and 12. Standard value = 9
3 = Directory name. Standard name is C:\NOW\FIG
4 = Wait time in second. Physical wait time between each calculation
cycle. Standard value = 0
5 = Speed of Light (Gravity propagation). Standard value is 300000
6 = Delta time in seconds between each calculation cycle.
Standard value is 100
7 = Eccentricity of Mercury. Standard value = 0.20563
8 = Speed of Sun. Standard value = 0
9 = Angle Phi of Sun in degrees. Standard value = 0
10 = Display condition.
-1 means once each revolution of Mercury
x means after each x calculation cycles
11 = Save condition
0 means no file save
1 means file save of results
12 = End Condition
-1 no end
x means after x revolutions of Mercury
13 = Sub Test. Sub test are used to select a specific command file
0 = no sub test
4 = Test with Mercury and Venus
5 = Test with Mercury and Earth
6 = Test with Mercury, Venus and Earth.
7 = Test with Mercury and all the planets except Pluto.
14 = Virtual Planets Condition
0 = no special condition with Mercury simulation
1 = Mercury simulation with virtual planet for Venus
2 = Mercury simulation with virtual planet for Venus and Earth
3 = Mercury simulation with virtual planet for all planets
15 = # of calculation cycles saved. Standard value = 0
0 = No calculation values saved.
16 = Angle of plane of planet Mercury. Standard value = 7 degrees