Reality Check
Penultimate Amazing
"Space wind" makes retrograde orbits,around rotating primaries unstable
We have some fundamental errors in Bjarne's idea:
First asked 13 November 2009
Bjarne only does his "calculations" for planets. Stellar formation means that planets are likely to orbit in the same direction as the rotation of their star. This is true for the 8 planets of the Solar System.
His "space wind" is caused by the rotation of the Sun. The reason that it accelerates the 8 planets is because they orbit in the same direction as the rotation.
But what about retrograde orbits around rotating objects like the Sun or Saturn, e.g that of Triton or Halley's Comet or the dwarf planet Pluto?
N.B. Bjarne does not have Pluto on his web site for some strange reason - maybe because his equation for "space wind" fails completely for Pluto.
Bjarne:
Why do objects in retrograde orbits around rotating objects (so that their "space wind" and mythical "kinetic resistance" are in the same direction) have stable orbits?
What about the spacecraft that are orbiting the Earth in retrograde orbits.
We have some fundamental errors in Bjarne's idea:
- Does Bjarne know basic physics (unit-less quantities cannot be arbitrarily assigned units)
(First asked 23 October 2009) - Experimental proof that Bjarne idea is wrong
(First asked 2 November 2009)
First asked 13 November 2009
Bjarne only does his "calculations" for planets. Stellar formation means that planets are likely to orbit in the same direction as the rotation of their star. This is true for the 8 planets of the Solar System.
His "space wind" is caused by the rotation of the Sun. The reason that it accelerates the 8 planets is because they orbit in the same direction as the rotation.
But what about retrograde orbits around rotating objects like the Sun or Saturn, e.g that of Triton or Halley's Comet or the dwarf planet Pluto?
N.B. Bjarne does not have Pluto on his web site for some strange reason - maybe because his equation for "space wind" fails completely for Pluto.
Bjarne:
Why do objects in retrograde orbits around rotating objects (so that their "space wind" and mythical "kinetic resistance" are in the same direction) have stable orbits?
What about the spacecraft that are orbiting the Earth in retrograde orbits.
- Why are they not falling from the sky?
- Why have scientists not noticed the effect of "space wind" on their orbits?
They can detect the flyby (~13 mm/s !)and Pioneer anomalies.
Of Jupiter's 55 moons, 48 have retrograde orbits. Of Saturn's 26 moons, 18 have retrograde orbits, and the particles in Saturn's Phoebe ring are thought to have a retrograde orbit because they originate from the irregular moon Phoebe. Of Neptune's 9 moons, 8 have a retrograde orbit.
...
Halley's Comet has a retrograde orbit around the sun.
The first Kuiper belt object discovered to have a retrograde orbit is 2008 KV42. The dwarf planet Pluto has retrograde rotation. Pluto's axial tilt is approximately 120 degrees.
...
The sun's motion about the centre of mass of the solar system is complicated by perturbations from the planets. Every few hundred years this motion switches between prograde and retrograde.
...
Exoplanets
Astronomers have discovered some exoplanets with retrograde orbits. WASP-17b is the first exoplanet that was discovered to be orbiting its star opposite to the direction the star is rotating] HAT-P-7b also has a retrograde orbit. The retrograde motion may be the result of gravitational interactions with other celestial bodies (See Kozai mechanism.) or a collision with another planet.
