I found out that using the Universal Parallax, you can calculate the distances to other Universal Objects, such as Stars and Galaxies, calculation based on luminance,size and the escape velocity from an object going away from another object!
But, stars have different luminosity, the one star can be yellow brightness +10, while the other star is brightness +5. Also they are variable in colour, from yellow, red and blue, etc...
They also have different sizes, like the Sun is 1 and the i.e. Antares is +- 300!
The speed of an object such as a Star is influenced by i.e. another star. So the parallax speed varies from one to another!
So, my guess is that the Universal Parallax is not that all accurate, taking the above factors into consideration!
In the Universe there are variable speeds, various sizes and luminosities!
So, I believe we don't know the acual distances, but using the Parallax is more theoretical
2007-09-15
18:43:09
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3 answers
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asked by
Anonymous
in
Astronomy & Space