Stellar Aberration
nakayama

Yokohama, Japan

#1 Jul 18, 2011
A water tank is moving (from the right to the left). Waves of sunlight are entering water from the upper right. On the angle of light waves in the water, there will be an effect caused by the motion of water tank. It will be mechanism of aberration (occurs on the upper atmosphere of the earth).

http://www.geocities.co.jp/Technopolis/2561/e...
nakayama

Yokohama, Japan

#2 Jan 27, 2012
Secular Aberration

In outer space, a telescope is pointed at a star. In front of the telescope, a diaphragm is attached (considerably distant ; on extension line of optic axis of the telescope). When this diaphragm is shut to pin-hole, the star will disappear. And disappearance (early slow difference) will depend on the position of the star on the celestial sphere. From this, value of secular aberration will be clarified.
-P.S.- Above view is based on rain-drop model. The telescope is supposed to be hollow tube.
nakayama

Yokohama, Japan

#3 Feb 5, 2012
- Withdrawal and Apology - Above my post (27 Jan) is wrong. Photons will pass through two pin-holes. The same aberration occurs on two telescopes (length is different).
However, i have read that coming direction of plane waves (of certain heavenly body) is possible to know precisely (with interferometers. such as VLBI. less than a millimeters angle. annual aberration is about 20millimeters angle [maximum]). If these apparatus is set on the moon's surface, difference between apparent direction seems to be detected.
nakayama

Yokohama, Japan

#4 Feb 7, 2012
The latter part of my post (5 Feb) seems that it must be withdrawn also. Position of heavenly bodies that are found by interferometer (such as VLBI) seems to be the position on the celestial coordinate system (follows "aberration frame").
-Correction- Annual aberration is a 20second angle.

There is a picture of night sky. Celestial sphere is rotating. Many stars draw arcs. On these arcs, there will be effect of annual aberration. Also there seems to be effect of secular aberration. It seems to be measurable theoretically.
nakayama

Yokohama, Japan

#5 Feb 12, 2012
VLT or VLBI again

Moon's surface (horizontal) is moving to the left. Light waves of a star are coming from the upper left. Coming direction of light waves (measured with an interferometer set on the moon) will not be changed by moon's motion (only frequency changes). On the other hand, because of aberration, apparent position (of this star) will be changed. What this difference (if it be) means (and how about secular aberration ?)?
- P.S.- The latter part of previous post is wrong. Allow me to withdraw it.
- Correction - Angle of annual aberration is a 20seconds angle. Angle distinguished by VLBI is below a milliseconds angle.
nakayama

Yokohama, Japan

#6 Feb 15, 2012
Supplument to above post

Coming direction of light waves will not be changed by moon's motion. Principle of interferometer [illustrated by two telescopes and right triangle] seems to ensure it. Then, secular aberration seems to be detectable.
nakayama

Yokohama, Japan

#7 Feb 18, 2012
Allow me to rewrite above post, please.

Moon's surface (horizontal) is moving to the left. Light waves of a star are coming from the upper left. There is an interferometer (small-sized VLT) on the moon's surface. When it is leaned, it will be possible to know the true coming direction of light waves (independently of moon's motion). On the other hand, because of aberration, apparent position (of this star) is changeable. If this difference is true, secular aberration seems to be disclosed.
nakayama

Yokohama, Japan

#8 Feb 24, 2012
Imagine motion of stars (seen from horizontal coordinate system) caused by earth's rotation. Secular aberration will be detectable (reason ; earth's axis will not overlap with the direction of motion of solar system).-P.S.- In a web-site (in Japanese), i found value 13.4 seconds of arc (it's value of secular aberration). Surprising !!
nakayama

Yokohama, Japan

#9 Mar 7, 2012
Above value "13.4 seconds of arc" is shown in a report carried in a journal "Report of the national astronomical observatory of Japan ; Feb 1993". No book seems to touch on this value.
nakayama

Yokohama, Japan

#10 Sep 25, 2013
- Direction of aberration -
From the upper right 45 degrees angle, light waves (plane waves) of a star are coming. The earth’s surface is supposed to move to the right. Slant of light waves in air will be gentler (than 45), because of drag. This will show that direction of aberration is opposite to rain-drop model. And it will be the same about refracting telescope moves in outer space.
nakayama

Yokohama, Japan

#11 Sep 29, 2013
In the above, light ray coming from upper right will be bent to the right slightly. Also, this will show that direction of aberration is opposite to rain-drop model.
nakayama

Yokohama, Japan

#12 Oct 18, 2013
There is a word "extinction" in a book Special Relativity by French, A.P. 1968. It's written as follows (original text ; quoted from "Google book" ; in 5-2). "Thus, for example, with visible light, a thickness of about 10-5cm of glass or 0.1mm of air at atmospheric pressure is almost enough to erase any possible memory, as it were, of the motion of the original source" (10-5cm is 0.0001mm).
Thus, change of light speed (caused by change of frame ; from aether to air), refraction, and drag (bend of light ray ; by moving medium) all will be completed in upper air. Rain-drop model is unsuitable. Result of Airy's experiment is only natural.
nakayama

Yokohama, Japan

#13 Oct 20, 2013
In air, refracting telescope is aimed at a star. Star light will come along the direction of optical axis and its product (extension of a straight line). Rain-drop illustration is wrong.
P.S. In outer space, object lens will bend the light ray in bigger way (This is Airy’s telescope !)
nakayama

Yokohama, Japan

#14 Feb 20, 2016
Secular Aberration
If some angle (not 90 degrees) of light ray (to the plane wave) is detected in outer space (on a star light), it will be an effect of observer's motion relative to aether. And by elimination of known aberrations, secular aberration (in this star's direction), will emerge.
P.S. In a web-site (in Japanese), i found value 13.4 seconds of arc (it's value of secular aberration)!! We have measured aether already ?

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