by henk21cm » Tue Mar 11, 2008 10:17 pm
Indigo_Sunrise wrote:I was meaning an alignment of the naked eye planets, (Mercury, Venus, Mars, Saturn, Jupiter), as were shown in the second and third links I included.
I was mostly just wondering if something like that would be occurring again in my lifetime
No problem. Since you want a conjunction between outer and inner planets, the outer planets must align at the opposite site of the sun.
What matters, are the synodic times:
Mercury: 115.88
Venus: 583.92
Mars: 779.94
Jupiter 398.88
Saturn: 378.09
When Saturn and Jupiter are in conjunction, it will take another 16 years for another conjunction with Saturn. Try solving the equations:
J * 398.88 = S * 378.09 = M * 779.94 = V * 583.92 = Y * 115.88
while J, S, M, V and Y are integers. Y = 5V.
The equation may not precisely met for V, since multiple instances of the position of Venus give the same position between the stars. So solving the first three parts for Saturn, Jupiter and Mars is more important.
I do not know the answer, just giving you a possible hint for finding your own solution.
Yet another hint: there are many 'planetary' programs on the net for doing simulations. Under Debian and KDE i use e.g. Kstars. For windows there is Celestia (know it by name, not using it). If you can find the old DOS version of Skyglobe, that might do the trick as well.
Regards,
Henk
[quote="Indigo_Sunrise"]I was meaning an alignment of the naked eye planets, (Mercury, Venus, Mars, Saturn, Jupiter), as were shown in the second and third links I included.
I was mostly just wondering if something like that would be occurring again in my lifetime
[/quote]
No problem. Since you want a conjunction between outer and inner planets, the outer planets must align at the opposite site of the sun.
What matters, are the synodic times:
Mercury: 115.88
Venus: 583.92
Mars: 779.94
Jupiter 398.88
Saturn: 378.09
When Saturn and Jupiter are in conjunction, it will take another 16 years for another conjunction with Saturn. Try solving the equations:
J * 398.88 = S * 378.09 = M * 779.94 = V * 583.92 = Y * 115.88
while J, S, M, V and Y are integers. Y = 5V.
The equation may not precisely met for V, since multiple instances of the position of Venus give the same position between the stars. So solving the first three parts for Saturn, Jupiter and Mars is more important.
I do not know the answer, just giving you a possible hint for finding your own solution.
Yet another hint: there are many 'planetary' programs on the net for doing simulations. Under Debian and KDE i use e.g. Kstars. For windows there is Celestia (know it by name, not using it). If you can find the old DOS version of Skyglobe, that might do the trick as well.
Regards,
Henk