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talksabcd
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If the universe is expanding, then the brightness of distant stars should gradually decrease. Did anyone observe this phenomena of fading star light ?
talksabcd said:Rate of expansion is given my Hubbles constant H=71 km/s/Mpc.
So a Galaxy at 1 Mpc will be moving at 71 km/s and a Galaxy at 2 Mpc will be
moving at 142 km/s etc. Galaxy receding velocity would be too high at greater Mpcs. So should there be visible fading of the star over time at greater Mpcs ?.
For example
If we note down the Brightness of the STAR now and calculate the brightness
after 5 or 10 Years then shouldn't we see some difference considering very high
receding velocities at higher distances ?
Please clarify
No, no, and no.talksabcd said:So are our instruments not capable of detecting decrease in Brightness by a factor of 0.999999999626824 after 5 years?
Is it possible to observe decrease in brightness after 20 or 30 or 40...years ?
If So, then anyone detected it ?.
The enemy of my enemy is my friend.Comment on Bertrand Russell:
Was Bertrand Russell certain of his statement or doubtful ?
His statement contradicsts itself as if he is certain then he would be the one described in the first part of the statement .If he is doubtful then he cannot be correct though he is wise.
"Star Light Fading" is a phenomenon that occurs when the light emitted from a star decreases in intensity over time. This can be caused by a variety of factors such as the star running out of fuel or being obscured by interstellar material.
The intensity of a star's light can be measured using a photometer, which is a device that detects and measures the amount of light that reaches it. The data collected by the photometer is then used to plot a light curve, which shows the changes in the star's brightness over time.
There are several possible causes of "Star Light Fading". These include the star running out of fuel and entering its end stages, being obscured by interstellar material such as gas and dust, or being affected by the gravitational pull of other nearby stars or objects.
While it is not always possible to predict when a star will experience "Star Light Fading", scientists can use data and observations to make educated guesses. For example, if a star is known to be nearing the end of its life cycle, it is likely that it will experience "Star Light Fading" in the near future.
"Star Light Fading" can significantly impact a star's lifespan, as it can be a sign that the star is approaching its end stages. Depending on the cause of the fading, the star may eventually die out completely or evolve into a different type of star. This process can take anywhere from a few thousand to billions of years.