Originally posted by cdrn
here's an experiment you could do if you had a fairly large amateur telescope:
1. Observe Saturn's moon, Iapetus. Look it up on Wikipedia if you haven't heard of it before, but it's very unique in the solar system in that one
hemisphere is very dark while the other is very bright.
Thanks for the post cdrn. I try not to use Wikipedia for any important reference. Wikipedia contains mainstream thought which may or may not be the
real truth. Usually not. Wikipedia is a reference for those who are too lazy to read.
The picture in Wikepedia of Iapetus is fabricated. It is an airbrushed photo of Iapetus. The information about the discovery of Iapetus is highly
sterilized if not contrived.
2. Over the period of many days, you will notice that it will periodically get brighter and darker. This is because it is rotating and the
brighter and darker hemispheres alternately face the Earth. Make note of how many days it takes for a full period of brightening and
I prefer to use Cassini's observation which he made in 1671. Cassini concluded that during the moons passage around Saturn various exposed faces
exhibited considerably different reflectivities.
Incidentally, NAZA has misrepresented, airbrushed and otherwise deceived the public of the true nature of Iapetus' visible hemisphere.
Here is a drawing I made of what Iapetus really looks like. I would show you a photo but the one I have has notations on it and it is copyrighted by
Norman has asked that I not post his photo of Iapetus because the notations on it are his exclusive property. He is presently writing a book about
About 30 years after his initial investigation of Iapetus Cassini thought he saw Iapetus in the 'forbidden' region. In other words he thought he saw
it where it should not have been.
From: The Ringmakers of Saturn Copyright Norman R. Bergrun The Pentland Press Edinburgh (LOCCCN 86-81530 ISBN 0 946270 33 3):
About a century later, Sir William Herschel took the view that the discoverer's original position was the only one possible. However, Cassini's
skepticism is meritorious in light of more recent data. American Professor Edward E. Barnard, in 1889, reported sudden disappearances of Iapetus while
engaging in ring translucency observations. Further, in 1913, Harvard advocated more study of Iapetus because some observations had revealed sudden
and large, irregular brightness fluctuations. Attempts to explain Iapetus must contend with these horns of an historical dilemma.
Observers of Iapetus have wondered how the iceous region, being shadowed from the sun, can be so intensely bright. They have wondered how the iceous
surface can change so abruptly into a radically different asphaltic composition. They have wondered about unexpected flashes of light, large variation
in surface reflectivity and sudden disappearance from view.
"NAZA's weak and improbable fantasies about Iapetus do little to explain these mysteries." johnlear
(Bergrun is retired from a long and distinguished career as an engineer/scientist/thermodynamicist with Douglas Aircraft and NACA (Ames), having
retired from Lockheed several year ago. Norm has been my friend for many years and I last visited him at his home in Los Altos Hills last August.)
3. Over the course of many days, Iapetus will also move in relation to Saturn; this is because of its orbit. Take note of how many days it
takes for it to make a full revolution. Of course, this method isn't completely accurate as Saturn is also moving in relation to the Earth, but over
short timescales it should be a pretty good approximation.
I would imagine "this method isn't isn't completely accurate" would be an understatement.
I think you may be overlooking Iapetus' significance for its orbital period. Its orbital period may vary.
While NAZA is trying to fabricate an excuse of why it is white on one side and black on the other they are neglecting to tell the public that the
white and black on Iapetus looks like Pac Man. They are also skirting the issue of the variable intensities both in brightness and in time periods for
the same hemisphere. (Just between you and me NAZA's really in a pickle on this one.)
In addition, you've applied a real astronomical method that is used by professional and amateur astronomers worldwide to measure such things
as rotation periods, orbital periods of eclipsing binary stars, etc.
….while being defrauded by NAZA with airbrushed pictures of Iapetus and other significant facts about Iapetus.
NAZA airbrushed photo of Iapetus:
Of course, you could make the argument that the entire professional and amateur astronomical communities are somehow in on this secret, but I
really can't help you there.
No I would guess that NAZA is defrauding them equally.
Thanks for the post.