- #1
kmarinas86
- 979
- 1
The universe should be billions of times brighter than the Milky Way?
I miscalculated =P
The sun is 1 AU away.
Overall:
Our overall galaxy is less than 20 million times dimmer than our sun.
Our overall super cluster is less than 3.6 trillion times dimmer than our sun.
Our overall universe is less than 12 million times dimmer than our sun.
It was my calcs.. nvm!
The sun is 1 AU away.
- The center of the galaxy is 2 billion AU away.
- A sun at 2 billion AU away is 4 billion billion times dimmer than our sun.
- There are about 200 billion stars within the radius of the sun's orbit.
- It would take less than 20 million billion times as many stars to be as bright as our sun.
- The Virgo SuperCluster is 6 trillion AU in radius.
- A sun at 6 trillion AU away is 36 trillion trillion times dimmer than our sun.
- There are about 10 trillion stars at the Virgo SuperCluster (10% of visible mass and 1% of virial mass).
- It would take less than 3.6 trillion times as many stars to be as bright as our sun.
- The visible "Big Bang" universe is 900 trillion AU in radius.
- A sun at 900 trillion AU away is 810 thousand trillion trillion times dimmer than our sun.
- There are about 70 thousand billion billion stars[1] in the visible "Big Bang" universe
- It would take less than 12 million times as many stars to be as bright as our sun.
Overall:
Our overall galaxy is less than 20 million billion times dimmer than our sun.
Our overall super cluster is less than 3.6 trillion times dimmer than our sun.
Our overall universe is less than 12 million times dimmer than our sun.
But this would mean that the brightness reaching us from the rest of the universe is greater than the brightness coming from our super cluster which is more than the brightness coming from our galaxy! But we do not observe this! The universe does not appear to be billions of times brighter than our galaxy! Something is wrong with the calculations or something is wrong with current theory!
I miscalculated =P
The sun is 1 AU away.
- The center of the galaxy is 2 billion AU away.
- A sun at 2 billion AU away is 4 billion billion times dimmer than our sun.
- There are about 200 billion stars within the radius of the sun's orbit.
- It would take less than 20 million times as many stars to be as bright as our sun.
- The Virgo SuperCluster is 6 trillion AU in radius.
- A sun at 6 trillion AU away is 36 trillion trillion times dimmer than our sun.
- There are about 10 trillion stars at the Virgo SuperCluster (10% of visible mass and 1% of virial mass).
- It would take less than 3.6 trillion times as many stars to be as bright as our sun.
- The visible "Big Bang" universe is 900 trillion AU in radius.
- A sun at 900 trillion AU away is 810 thousand trillion trillion times dimmer than our sun.
- There are about 70 thousand billion billion stars[1] in the visible "Big Bang" universe
- It would take less than 12 million times as many stars to be as bright as our sun.
Overall:
Our overall galaxy is less than 20 million times dimmer than our sun.
Our overall super cluster is less than 3.6 trillion times dimmer than our sun.
Our overall universe is less than 12 million times dimmer than our sun.
It was my calcs.. nvm!
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