# Thread: Formulas for Star-Earth relationship

1. ## Formulas for Star-Earth relationship

well folks I've finally managed to come up with a formula composed of 4 small other formulas which you can use in order to see how a star has to act in order to replace our Sun, without changing our life conditions so basically it can really replace teh Sun without us knowing it

That star has to :

1) be situated at a distance = 13000000000 kilometers for every E surface ( where E is the size of 1 Earth )

2) have a temperature = 0.004 Celsius degrees for every kilometer of distance ( where the distance is the one calculated above )

3) have a luminosity = 26000000000000000000000 Watts for every kilometer of distance ( where the distance is the one calculated above )

4) have a gravity = 0.0000186 g ( where g is the gravity of 1 Earth ) for every kilometer of distance ( where the distance is the one calculated above )

I hope this comes handy for anyone who wants to see if a certain star would fit as a new Sun

NOTE : in order for a star to be able to do such a thing, ALL of the above 4 mentioned have to be satisfied simultaneously else God forbid !!!

2. Originally Posted by Twinsun
well folks I've finally managed to come up with a formula composed of 4 small other formulas which you can use in order to see how a star has to act in order to replace our Sun, without changing our life conditions so basically it can really replace teh Sun without us knowing it

That star has to :

1) be situated at a distance = 13000000000 kilometers for every E surface ( where E is the size of 1 Earth )

2) have a temperature = 0.004 Celsius degrees for every kilometer of distance ( where the distance is the one calculated above )

3) have a luminosity = 26000000000000000000000 Watts for every kilometer of distance ( where the distance is the one calculated above )

4) have a gravity = 0.0000186 g ( where g is the gravity of 1 Earth ) for every kilometer of distance ( where the distance is the one calculated above )

I hope this comes handy for anyone who wants to see if a certain star would fit for a new Sun

NOTE : in order for a star to be able to do such a thing, ALL of the above 4 mentioned have to be satisfied simultaneously !!!
What is your math behind these, Twinsun? All of your relationships are linear, but they shouldn't necessarily be so. For instance, luminosity depends on surface area and the fourth power of temperature (L=k*SA*T4), but your equations give L=k*T. That's not correct. Also, what is "the gravity of Earth" and your general quantity "gravity"? What does "gravity" have to do with our life conditions?

Finally, I suggest that you read up on scientific notation. So many zeroes are a pain to read (and write).

3. lol I know they are a pain but the text editor on the forum isn't providing any tools anyway, my maths are rather simple as I took in calculation ONLY the 5 elements which can really affect us : bright light, heat, how big the star is + the distance, thus resulting in the gravitation inflicted upon Earth, which too results in the orbiting of our planet around the star anyway they might be wrong in a a real simulation, but this is how I see things ... u know whenever I want to study cosmic objects, etc. that do NOT belong to Earth, I try to use as less physics and mathematics as I can because I have some doubts about their validity outside our mother planet

4. Originally Posted by Twinsun
well folks I've finally managed to come up with a formula composed of 4 small other formulas which you can use in order to see how a star has to act in order to replace our Sun, without changing our life conditions

5. oh lol I guess I've posted in here almost 90&#37; of my messages and kinda made this section home sweet home sorry I didn't realize that

6. Moved from Q&A to Astronomy.

7. Originally Posted by Twinsun
... u know whenever I want to study cosmic objects, etc. that do NOT belong to Earth, I try to use as less physics and mathematics as I can because I have some doubts about their validity outside our mother planet
yeah, those pesky physics and mathematics can become kind of cumbersome when they don't work out the way you wan them to.

8. thanks ToSeek also, scientists too have agreed that at some distant point in the Universe or black holes, 'space and time as we know it might seize to exist'

9. Originally Posted by Twinsun
thanks ToSeek also, scientists too have agreed that at some distant point in the Universe or black holes, 'space and time as we know it might seize to exist'
I assume that you mean "cease." Care to give your source on that comment?

10. oh sorry cease yep dunno what I was thinking about when I typed that thingy. Anyway this sentence echoes in my head from many many TV documentaries like National Geographic, Discovery Science, etc.

11. Originally Posted by Twinsun
oh sorry cease yep dunno what I was thinking about when I typed that thingy. Anyway this sentence echoes in my head from many many TV documentaries like National Geographic, Discovery Science, etc.
Which makes it an unreliable source. In addition, the universe and black holes are very different things. I suspect that you're misremembering something about the latter and applying it incorrectly.

12. nope I have it right here in my Movies folder

13. Originally Posted by Twinsun
nope I have it right here in my Movies folder
Then you can give the actual source (person and show) for the quote(s)?

14. Originally Posted by Twinsun
thanks ToSeek also, scientists too have agreed that at some distant point in the Universe or black holes, 'space and time as we know it might seize to exist'
The laws of the physics are the same in entire universe except the center of the black hole where there is all matter of the dead star squeezed into infinitely small point with infinite density, entropy and temperature.
But this really doesn't matter now.

15. well u know when spacetime continuum gets another approach, all current theories are messed up. Anyway, the movie is named : National Geographic - Our Universe, but I dunno who's the narrator

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