How many watts does the sun equal??

[Hypertek99]

Is this a good question???

[JetCat USA]

174 petawatts

a pita is 10 to the 15th or a quadrillion or a thousand billion.

[T Man]

Our star has a luminosity of 3.85 x 10 to the 26th power watts, and yes that's an excellent question.:D TinMan

[Roy G. Biv]

<a href=showthread.php?s=&postid=10870691#post10870691 target=_blank>Originally posted</a> by JetCat USA
174 petawatts

a pita is 10 to the 15th or a quadrillion or a thousand billion.

Can you type this out please?

http://www.jesseshunting.com/forums/style_emoticons/default/smiley-face-pukin-blue.gif

[T Man]

<a href=showthread.php?s=&postid=10870691#post10870691 target=_blank>Originally posted</a> by JetCat USA
quadrillion or a thousand billion.

Is'nt a thousand billion= trillion?
thousand million=billion
thousand billion=trillion
thousand trillion=quadrillion and so on.............

[virginiadiver69]

Would T-5 be close enough or would I have to go with MH?

[davidryder]

385,000,000,000,000,000,000,000,000 watts

[JetCat USA]

<a href=showthread.php?s=&postid=10870724#post10870724 target=_blank>Originally posted</a> by Pmolan
Can you type this out please?


174x 1 000 000 000 000 000 000 000 000

[scott_richards]

"The Earth receives 174 petawatts (PW) of solar radiation at the upper atmosphere. While traveling through the atmosphere, 6% of the incoming solar radiation (insolation) is reflected and 16% is absorbed. Average atmospheric conditions (clouds, dust, pollutants) further reduce insolation by 20% through reflection and 3% through absorption"
"Atmospheric conditions not only reduce the quantity of insolation reaching the Earth's surface but also affect the quality of insolation by diffusing approximately 20% of the incoming light and altering its spectrum."

So the first 45% (6% reflected + 16% absorbed + 20% conditional reflection + 3% conditinal absoprbtion) brings the 174 petawatts down to 119 petawatts. Then 20% of that has had its spectrum altered. I guess this is still light thats reaching the tank, but even if we take that out of the 119 petawatts, we still have 95.2 petawatts at the very least.

95,200,000,000,000,000,000,000,000 watts :)

I have too much time on my hands...

[JetCat USA]

<a href=showthread.php?s=&postid=10870803#post10870803 target=_blank>Originally posted</a> by T Man
Is'nt a thousand billion= trillion?
thousand million=billion
thousand billion=trillion
thousand trillion=quadrillion and so on.............


10 (15) = 1,000,000,000,000,000 quadrillion 1,000 (1 + 4) thousand billion (or billiard) 1,000,000 (2.5)



Quad = four

[T Man]

<a href=showthread.php?s=&postid=10870691#post10870691 target=_blank>Originally posted</a> by JetCat USA
quadrillion or a thousand billion.
So so are saying that a thousand billion is NOT a trillion:confused:.................
bi=two
tri=three
quad=four

[JetCat USA]

<a href=showthread.php?s=&postid=10870988#post10870988 target=_blank>Originally posted</a> by T Man
So so are saying that a thousand billion is NOT a trillion:confused:.................


a thousand billion is 10 to the 15th, a trillion is 10 to the 12th

http://i20.*******.com/2czvi1d.jpg

[IslandCrow]

Would T-5 be close enough or would I have to go with MH?

Whichever one you get, make sure it comes with a polar icecap to cool it.

[T Man]

<a href=showthread.php?s=&postid=10871131#post10871131 target=_blank>Originally posted</a> by JetCat USA http://i20.*******.com/2czvi1d.jpg
Doooh!!:D Scientific notation has always given me a headache:hmm4: T

[Travis L. Stevens]

<a href=showthread.php?s=&postid=10870829#post10870829 target=_blank>Originally posted</a> by virginiadiver69
Would T-5 be close enough or would I have to go with MH?

Uhh.... no :)

PAR Readings
Oklahoma sun at 5pm at street level: ~1800
4x 54w T5HO with individual Reflectors at water surface: ~300-500 depending on bulbs/ballast
1x 250w SE Metal Halide: ~200-400 depending on bulb/ballast

[cd77]

<a href=showthread.php?s=&postid=10871131#post10871131 target=_blank>Originally posted</a> by JetCat USA
a thousand billion is 10 to the 15th, a trillion is 10 to the 12th

A thousand billions is not 10^12th (one trillion) ??

1,000 * 1,000,000,000 = 1,000,000,000,000
10^3 * 10^9 = 10^12

or what am I missing here? Are we confusing the British 'Thousand Billion' unit with the American equivalent of 'one thousand billions' where a British billion is 10^12 making a 'British Thousand Billion' 10^15? I think now even the American system is being used by the British government.

I'm on lots of cold medicine, but you lost me.

[JetCat USA]

<a href=showthread.php?s=&postid=10871625#post10871625 target=_blank>Originally posted</a> by cd77
A thousand billions is not 10^12th (one trillion) ??

1,000 * 1,000,000,000 = 1,000,000,000,000
10^3 * 10^9 = 10^12

or what am I missing here? Are we confusing the British 'Thousand Billion' unit with the American equivalent of 'one thousand billions' where a British billion is 10^12 making a 'British Thousand Billion' 10^15? I think now even the American system is being used by the British government.

I'm on lots of cold medicine, but you lost me.

scroll up 2 and 4 posts above yours for a pic.

[cd77]

<a href=showthread.php?s=&postid=10871131#post10871131 target=_blank>Originally posted</a> by JetCat USA
a thousand billion is 10 to the 15th, a trillion is 10 to the 12th

http://i20.*******.com/2czvi1d.jpg

This post you mean? It looks like you just looked at the right hand side of your chart (british system) to define a 'thousand billion' and then the left hand side to define a 'trillion'. In that case, 10^12 (one trillion american) = 10^18 (one trillion british)? Spell it out for me -- I'm on lots of nyquil.

[JetCat USA]

a peta is 10 to the 15th or a quadrillion or a thousand billion, that covers American, European, Asian, African, Australian, etc....

[Salamander]

So, how many candle power is that?

How many 60 watt incandescent bulbs does the equate to?

[Salamander]

Hey Hyper...

Not sure if you're a VT fan but, GO HOKIES!!!!!!!!!

[JetCat USA]

candlepower isn't watt related, it's very different dependent on the type of light. Watts in that instance is a measurement of input and candlepower is a measurement of output.

[cd77]

<a href=showthread.php?s=&postid=10871682#post10871682 target=_blank>Originally posted</a> by JetCat USA
a peta is 10 to the 15th or a quadrillion or a thousand billion, that covers American, European, Asian, African, Australian, etc....
Kinda:

Yes, a peta (SI) is 10^15th, or:

1. American: 1 quadrillion, or one thousand trillions
2. British: 1 thousand billion, or a 'billiard'

T Man's question was right on. Though we wouldn't use the term 'Thousand Billion' in America very often, we would equate it to a thousand billions (just the same way the British would, except they define a billion differently as 10^12 hence a 'thousand billion' being 10^15) which is an American 'trillion'.

[T Man]

<a href=showthread.php?s=&postid=10871758#post10871758 target=_blank>Originally posted</a> by cd77
T Man's question was right on.

Thank's cd77......I knew I wasn't losing my mind. Keep on drinkin' the Nyquil :beer: I shouldn't have "rolled over" so fast- That chart is just way too confusing for this ol' Tinner ! :hmm1: TinMan

[cd77]

:beer:

[musty baby]

Actually, I think you're all off :)

The sun is on average 150 million km away from the earth. The area of the imaginary sphere at the distance of the earth is 4*pi*150 000 000^2, or 2.83*10^17 km^2.

The earth is about 12735 km wide. The cross section of earth perpendicular to the sun is about pi(12735/2)^2 or 127 376 050 km^2.

By that, the earth receives (127 376 050/2.83*10^17)*100 or .000 000 045 percent of the sun's radiation.

Simple proportion - if we receive 174 petawatts and we are .000 000 045% of the area bombarded by the sun's radiation, then 100*174/.000 000 045 should equal around the number of petawatts total. 386 666 666 667 petawatts.

386 666 666 667 000 000 000 000 000 watts.

Hooray. I am officially lame ;)

[musty baby]

Oops. I guess I missed jetcat's first post!

[T Man]

<a href=showthread.php?s=&postid=10871853#post10871853 target=_blank>Originally posted</a> by ryansholl
Actually, I think you're all off
http://reefcentral.com/gallery/data/500/113880sun.jpg

[steve70]

over my head, talk english, lol

[musty baby]

Whoa buddy. I meant "oops didn't see T Man's post".

Your book = 3.85x10^26 watts

My crummy math = 3.87x10^26 watts

:)

[Adam G]

Can you guys figure up some numbers to show how many watts it would take to match the power of the sun in an aqaurium?

Let's assume that we take the amount of sunlight in clear ocean water at a depth of 30ft on the equater.

How many watts to match this amount of light in an aquarium at a depth of 1 ft?

[Roy G. Biv]

<a href=showthread.php?s=&postid=10871894#post10871894 target=_blank>Originally posted</a> by T Man
http://reefcentral.com/gallery/data/500/113880sun.jpg


Did you just scan this in??

http://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gif

[sabbath]

<a href=showthread.php?s=&postid=10871540#post10871540 target=_blank>Originally posted</a> by Travis L. Stevens
Uhh.... no :)

PAR Readings
Oklahoma sun at 5pm at street level: ~1800
4x 54w T5HO with individual Reflectors at water surface: ~300-500 depending on bulbs/ballast
1x 250w SE Metal Halide: ~200-400 depending on bulb/ballast

Good question. I wonder what the par reading is in the oceans right on top of the coral reefs. Is our lights getting close to the par that they are used to.

[JetCat USA]

<a href=showthread.php?s=&postid=10872193#post10872193 target=_blank>Originally posted</a> by Adam G
Let's assume that we take the amount of sunlight in clear ocean water at a depth of 30ft on the equater.

those numbers would change throughout the seasons, the Earth travels in an elliptical pattern around the sun and is closer at times then at others. in the northern hemisphere when the Earth is closer to the sun it's winter :)

[sabbath]

<a href=showthread.php?s=&postid=10872421#post10872421 target=_blank>Originally posted</a> by JetCat USA
those numbers would change throughout the seasons, the Earth travels in an elliptical pattern around the sun and is closer at times then at others. in the northern hemisphere when the Earth is closer to the sun it's winter :)

It would be beneficial to see how our lights compare though. I wonder what the range of this change in seasons would be. Or how we compare in winter or summer...

[erbio]

LOL

[xtm]

these PITAwatts are so PITA to calculate :lol:

Let's wait for Sanjay's review of the sun

[Hypertek99]

Ok so how many watts per gallon does the sun equal if anyone can find out the total amount of water in the ocean?

[NaH2Ofreak]

wait a minute......loading another bowl....:smokin:

[Hypertek99]

lol

[tkeracer619]

<a href=showthread.php?s=&postid=10873189#post10873189 target=_blank>Originally posted</a> by Hypertek99
Ok so how many watts per gallon does the sun equal if anyone can find out the total amount of water in the ocean?


1,056,115.85 Watts/Gallon

Earth has ~ 332,500,000 Cubic miles of water
1 Cubic Mile = 1,101,117,140,000 US Gallons
Sun has ~386,666,666,667,000,000,000,000,000 Watts per prior discussion.


386,666,666,667,000,000,000,000,000Watts/(332,500,000Miles^3 *(1,101,117,140,000G/Mile^3))=1,056,115.85 Watts/Gallon

[sirjohn]

<a href=showthread.php?s=&postid=10870829#post10870829 target=_blank>Originally posted</a> by virginiadiver69
Would T-5 be close enough or would I have to go with MH?
lol

[cd77]

Can anyone recommend a company that produces a good fusion reactor light fixture? Kinda on a budget here.. just something simple.. I'll be happy to supply my own hydrogen and helium...

[Hypertek99]

So 400watts over a 29Gal is not overkill. LOL

[tkeracer619]

<a href=showthread.php?s=&postid=10874335#post10874335 target=_blank>Originally posted</a> by Hypertek99
So 400watts over a 29Gal is not overkill. LOL

If you custom make your reflectors I bet you could get (4) 1000W bulbs or more over that 29G

[JetCat USA]

I've ran a 400w 20kk XM over a 29 with excellent results, i just had to use a 6" wal-mart fan plus a 1/10hp chiller to keep temp in check.

[T Man]

<a href=showthread.php?s=&postid=10872210#post10872210 target=_blank>Originally posted</a> by Pmolan
Did you just scan this in??

http://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gifhttp://www.jesseshunting.com/forums/style_emoticons/default/smiley-7-bouncin-aqua.gif
Indeed I did :twitch:, someone had to back the facts up :reading: T

[jacmyoung]

<a href=showthread.php?s=&postid=10873986#post10873986 target=_blank>Originally posted</a> by tkeracer619
1,056,115.85 Watts/Gallon

Earth has ~ 332,500,000 Cubic miles of water
1 Cubic Mile = 1,101,117,140,000 US Gallons
Sun has ~386,666,666,667,000,000,000,000,000 Watts per prior discussion.


386,666,666,667,000,000,000,000,000Watts/(332,500,000Miles^3 *(1,101,117,140,000G/Mile^3))=1,056,115.85 Watts/Gallon

Not a fair number unless a motorized reflector is installed behind the Sun so it always faces the Earth as the Earth orbits the Sun.

How much aluminum is needed to make that reflector? Assume it will magically withstand the heat.

[cd77]

Just thought this was interesting -- according to Wikipedia, the earth receives 750 W / square meter from sunlight on a clear day: http://en.wikipedia.org/wiki/Orders_of_magnitude_(power)#Watt_2

Unfortunately, a reference isn't sited for this figure.

[m2434]

<a href=showthread.php?s=&postid=10872421#post10872421 target=_blank>Originally posted</a> by JetCat USA
those numbers would change throughout the seasons, the Earth travels in an elliptical pattern around the sun and is closer at times then at others. in the northern hemisphere when the Earth is closer to the sun it's winter :)

Barely, the orbit is ALMOST a perfect circle. There would be a slight change, but depending on your precision, would likely be lost to rounding error.

Here is some more info...

NASA (http://science.nasa.gov/headlines/y2001/ast04jan_1.htm)

this is one of the weirdest threads I've seen... I like it!


:mixed:

[JetCat USA]

<a href=showthread.php?s=&postid=10876810#post10876810 target=_blank>Originally posted</a> by m2434
Barely,

yeah i guess 3.5 million miles difference isn't very much :)

[rjrobert]

I'll get a waterproof PAR meter if someone will buy my tickets to the carribean. I'll post PAR reading everyday for a year!!! :)

[m2434]

gotta love the big picture!

:lol: :D :lol: :D :lol:

[barjam]

PAR Readings
Oklahoma sun at 5pm at street level: ~1800
4x 54w T5HO with individual Reflectors at water surface: ~300-500 depending on bulbs/ballast
1x 250w SE Metal Halide: ~200-400 depending on bulb/ballast


So 4x54W T5 had higher par than 1 x 250? Interesting.

I would love to run the Oklahoma Sun over my tank but the color is a bit yellow for my taste. Perhaps if we had a blue dwarf star binary system...... Wow, that was pretty dorky.