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2006-08-03 09:16:13 · 6 answers · asked by Clefestus 1 in Science & Mathematics Physics

6 answers

Let's start from the beginning.

A parsec is 3.08567758×10^16 m (by definition).
A meter has 10^9 nanometers (by definition).

That means there are 3.08567758 x10^25 nm to a parsec.

But you asked about cubic nanometers and cubic parsecs, so we'll have to cube the answer to get:

2.938 x10^76 cubic nm to a cubic parsec.

That's a lot. Hope it helps!

2006-08-03 09:43:30 · answer #1 · answered by Doctor Why 7 · 1 0

A parsec is a unit of astronomical length based on the distance from Earth at which stellar parallax is one second of arc and equal to 3.258 light-years, 3.086 × 10^13 kilometers, or 1.918 × 10^13 miles.

Now, let's do the math. One cubic parsec would be (3.086 × 10^13 kilometers)^3. This equals 2.93892 x10^40 cubic kilometers. One cubic kilometer equals 1 x 10^9 cubic meters, and one cubic meter equals 1 x 10^27 cubic nanometers. Therefore, there are 2.93892 x 10^76 cubic nanometers in one cubic parsec.

2006-08-03 16:55:22 · answer #2 · answered by bullshitjunkmail 1 · 0 0

Well, let's see here...

1parsec=3.08567758×10^16 m
1m=10^9 nm
1parsec=3.09x10^25
1parsec^3=(3.09^3)x 10^(25x3)= 2.94 x 10^76nm
or written longhand: 29,379,989,418,364,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

In other words, a heck of a lot

The thing you have to remember is that since it's a cubic parsec, you have to cube the number of nanometers in a single parsec. Just like there are 1728 cubic inches in a cubic foot.

2006-08-03 16:41:21 · answer #3 · answered by J C 3 · 0 0

a lot.. 3085678000000000000000000nm to 1 parsec

2006-08-03 16:23:19 · answer #4 · answered by Anonymous · 0 0

ROTFLMAO! Oh, let's see, you just sit right down and start counting, okay? You're gonna be at it a long time; better bring a lunch! It's kinda a big number, don't ya know.

2006-08-03 16:22:59 · answer #5 · answered by Anonymous · 0 0

The answer is: 2.9380006724_E76

2006-08-03 16:38:20 · answer #6 · answered by Anonymous · 0 0

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