Dne úterý 16. února 2016 21:29:33 UTC+1 Martin Brown napsal(a):
On 16/02/2016 13:21, Peter Riedt wrote:

(M1+M2)P^2 = a^3 (using units of solar masses, years, and AUs)

*UNITS!!!* ^^^^^^^^^^^^

There is hidden implicit G,
with the value approximately 1, and dimension of AU^3 / year^2 / Ms