Somebody ‘splain please! It took over 13 billion years for the light to get here. So it’s over 13 billion light years away. I thought the universe was much smaller then, and things were not far from each other because the universe hadn’t expanded so much.
So why does this light source appear so far away in the telescope?
We moved..................
The Speed of Light is a constant in a vacuum.
Close objects like stars can be measured with basic geometry using the PARALLAX method. Observing the star’s apparent shift in position from different parts of the Earth’s orbit.
Galaxies are much farther away and require using the Red Shift of it’s light to measure the distance. The farther away it is the more Red Shifted its light will be. Certain elements produce dark lines in the spectrum of light, so looking at the spectrum of the light and noting how much a certain element is shifted tells you how far away it is............
Christmas lights on a double wide.
So why does this light source appear so far away in the telescope?=
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Not enough govt grant for a closer telescope.