reply to post by Neo__
People say allot of things, but that doesn't necessarily mean they are true.
Lets have a look as some of his claims in detail.
• resides in our Earth’s atmosphere
He says that, but I can't seem to find any evidence supporting his claim on that web site.
• can move, spin, pulsate and blink
Autokinesis can make "stationary" lights like planets and stars appear to move, whilst
scintillation can make them appear to "pulsate and blink".
• can change size and shape (eg round, diamond, hexagonal)
Stars and planets can vary in brightness (and apparent size because of this) due both atmospheric conditions and altitude above the horizon, as well
as a similar effect to the
Moon illusion.
Ok, lets look at some of the images he has presented to back up these claims...
Round:
Source:
click here
These effects are typical of
out of focus stars, planets, and any other point light source or near-point light source. Read up about
"airy discs" here.
Computer-generated image of an Airy disk. The gray scale intensities have been adjusted to enhance the brightness of the outer rings of the Airy
pattern.
Source:
wikipedia
Here is a star called Altair imaged at varying degrees of focus:
Source:
Kolkert-Observatory
See the similarity?
How about "Diamond" then?
Spain, Photograph sent by G.L., Barcelona, who explains: “The star rises in the sky at about 11pm from the east-southeast and seen from
the north moves west, rising in altitude. It moves quite quickly. This photo was taken in Vilassar de Mar, in Barcelona province, Spain … camcorder
footage shows ‘pulsations’, changes of size and flashing of the star when the zoom was fixed in the same position.”
Source:
click here
From the photograph's EXIF data I determined that the camera used to capture this image was a
Panasonic HDC-SD5 Hi-Def
Camcorder.
Here's another
image I found that was taken with this
same model, from which I have enlarged and cropped a small area:
Both the green light and the "white" light in the lower left hand corner, are clearly diamond shaped.
This is indicative of the Panasonic HDC-SD5 having a diamond shaped iris.
The iris (or aperture) shape can give point source/out of focus lights the appearance of having almost any shape you want:
Here are two shots to demonstrate this technique - one with a bare lens and the other with the hearted hood.
Source:
diyphotography.net
Some cameras have round irises, some have diamond shaped irises, but many cameras have an iris that is hexagonal or in some cases (like the above
example on the right hand side) pentagon shaped.
From Creme's collection:
Source:
click here
How about "the cross"?
Source:
click here
These are what are known as "
diffraction spikes". They are common when using a small
aperture, and can even be seen in one of the example
images I posted above.
How about this image which Creme posted:
The Netherlands, Tilburg, 25 July 2009. E. H. writes: “About midnight the star was positioned low in the sky, east-southeast, and moved
unusually fast southward. In the foreground the funfair can be seen.”
Source:
click here
Larger file:
click here
I checked using my planetarium software what the sky would have looked like, and sure enough the bright "star" in the photograph turned out to be
Jupiter, which would have been very bright (mgnitude -2.8) that night in Tilberg:
Click here and go to the "astro-UFO" folder or save and view from your own PC to see the full size image:
media.abovetopsecret.com...&action=view&id=63444
Look how well the stars match, and they are exactly in the part of the sky (low in the east-southeast) that "E. H." referred to in the "report"
above.
Here's another odd looking object at first glance, but it is in fact what you would expect to see when two bright out of focus stars are next to each
other:
Source:
click here
The Airy disks of two close objects will overlap
making it difficult to see either clearly.
Source:
The RASC Calgary Centre
Continuing...
• can change position in the sky
Not really surprising since the Earth rotates (making celestial objects in the sky seem to move over time), and planets also constantly change their
position against the star background.
• can get closer, and recede, at speed
Well I've heard people say this before and it has turned out to be more likely than not a star or planet ... Famously
Jimmy Carter said exactly the same thing about a UFO that was later shown to most
likely be Venus.
In this case, Creme has already shown that he is very good at misidentifying celestial objects, so it would not surprise me if he had a similar
"brain fart" to Jimmy.
• is very bright and sometimes the only star visible
Funnily enough, that description also fits
Venus to a "T":
After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6.
In fact, if you know where to look, you can sometimes see Venus in broad daylight it's so bright!
• can radiate bright colours, often in quick succession
This is also a well known effect that is caused by
scintillation as mentioned
before.
• has been sighted day and night
See above...
• can respond to thought: has been known to appear and move when asked
I'll believe it when I see it...
• several witnesses have even seen all four ‘stars’ together
"Four"?
• is seen all over the world
Venus would be too depending on the time of day/year/location.
We're not in for some "new dimension of UFO observation", it's just the same old crap being peddled to unsuspecting (or ignorant) people by "UFO
witnesses" who don't know their arse from their elbow when it comes to stars/the sky/proper identification/cameras.
Don't let the ignorant few fool you into blindly supporting and promoting their ignorance.
[edit on 26-12-2009 by C.H.U.D.]