# The Naked Scientists Forum

### Author Topic: Are there more stars in the universe than atoms in my body?  (Read 9429 times)

#### latebind

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##### Are there more stars in the universe than atoms in my body?
« on: 18/03/2009 11:11:09 »
Suppose I weigh the average weight of 80KG.

Are there more stars in the universe than atoms in my body?
« Last Edit: 18/03/2009 12:26:41 by latebind »

#### Don_1

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##### Are there more stars in the universe than atoms in my body?
« Reply #1 on: 18/03/2009 16:00:04 »
I wouldn't fancy counting either!

#### neilep

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##### Are there more stars in the universe than atoms in my body?
« Reply #2 on: 18/03/2009 17:45:45 »
Suppose I weigh the average weight of 80KG.

Are there more stars in the universe than atoms in my body?

Well, what's the average number of stars in your bog standard galaxy ? 200 billion...and how many galaxies are there out there...about the same amount ?....so it's 200 billion x 200 billion and then ewe gotta figure out the number of atoms in 80kg of human joy !.....hmmmm...as a sheepy..I can't count higher than 3 so..it's over to someone who count higher than me !

#### dlorde

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##### Are there more stars in the universe than atoms in my body?
« Reply #3 on: 18/03/2009 21:02:17 »
I would guess there are substantially more atoms in your body than stars in the known universe. Estimates of the number of cells in the body are from about 10 trillion to 100 trillion - how many atoms in the average cell?

#### latebind

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##### Are there more stars in the universe than atoms in my body?
« Reply #4 on: 18/03/2009 21:46:02 »
I got an idea from one of the replies, and did some research

It seems in the universe there are 722 stars
http://edition.cnn.com/2003/TECH/space/07/22/stars.survey/

In the human body it seems to be 727 atoms for an 70KG person.
http://education.jlab.org/qa/mathatom_04.html

Also

So I guess this answers it, or does it  ?

#### DoctorBeaver

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##### Are there more stars in the universe than atoms in my body?
« Reply #5 on: 18/03/2009 21:54:20 »
oooh, someone who knows how to give references for facts! Well done.

#### The Naked Scientists Forum

##### Are there more stars in the universe than atoms in my body?
« Reply #5 on: 18/03/2009 21:54:20 »