f = PN/120 where f is frequency of power supply, P is number of poles in the machine and N = speed in rpm. So, Synchronous speed N = 120f/P. Thus for 50 Hz supply, 2 pole machine; synchronous speed = 3000rpm. ETRICAL
Within our solar system quite a bit of exploration has been done by spacecraft including orbiters and landers. Planets outside our solar system will be difficult or impossible to explore with spacecraft in our lifetimes, so astronomers and astrobiologists use other techniques to search for signs of life on these planets. In particular, astronomers are interested in planets within the habitable zone of stars.
The outermost region of the solar system is called 'The Oort Cloud', so, you may be correct in assuming that these are called 'Oort Cloud Objects'.These are commonly known as comets when their respective orbits are disturbed, and cause the object to fall inward toward the sun.Peace, Bobby.he outermost region of the solar system is called 'The Oort Cloud', so, you may be correct in assuming that these are called 'Oort Cloud Objects'.