cossiebri
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| posted on 5/11/07 at 07:55 PM |
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google earth
Playing with google earth+sky with my son, trying to explain the distances from here to there. the crab nebula is 6500 light years away- if we use a
pea as a scale of the earth how far away would 6500 light years be ?? Anyone,come on i know lot you like a challenge!!  (I told him from here
(portsmouth) to grans(barrow-in-furness) am i even close??)
If it doesn't fit MODIFY it!!
Cheers BriF
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meany
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| posted on 5/11/07 at 07:57 PM |
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your probably way off.
my boss does this in spare time/days off.
this is his website.
http://www.btinternet.com/~theplanetearthcentre/
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blakep82
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| posted on 5/11/07 at 08:03 PM |
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isn't a light year the the distance light travels through space in 1 earth year?
take into account the speed of light and... i'd say its about 1 and a half times as far as portsmouth to barrow in furness
Edit: 1 light year is 9,460,730,472,580.8 km
[Edited on 5/11/07 by blakep82]
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triafgg
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| posted on 5/11/07 at 08:18 PM |
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By my calcs quite a bit out. I reckon 30 million miles is nearer the mark, won't get there on a tank in mine :-(
I was working on a 10 mm pea so we seem to all roughly agree....
[Edited on 5/11/07 by triafgg]
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matt12
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| posted on 5/11/07 at 08:19 PM |
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assuming pea dia of 7mm
i also get 33.8 million km
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speedyxjs
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| posted on 5/11/07 at 08:25 PM |
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I know that the light we get from the sun is 4 earth years old 
How long can i resist the temptation to drop a V8 in?
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JoelP
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| posted on 5/11/07 at 08:31 PM |
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if the solar system was 7mm then the galaxy would cover most of england. It might be a good idea to start small and work you're way up to
distant things!
oops my bad, 6500 light years isnt even out of the galaxy!
[Edited on 5/11/07 by JoelP]
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PAULD
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| posted on 5/11/07 at 08:33 PM |
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earth a 6mm pea, about 18 million miles.
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Liam
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| posted on 5/11/07 at 10:09 PM |
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quote:
Originally posted by speedyxjs
I know that the light we get from the sun is 4 earth years old
Dunno where you heard that - it's just over 8 minutes
Using a 7mm pea for the earth, the crab nebula is about 2500 earth diameters away. Astronomical scale is just crazy - scaling objects down to peas,
pinheads etc etc to try and visualise the scale of things still leaves you with unimaginable distances! And 6500 light years is just the very local
part of our galaxy...
Liam
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fesycresy
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| posted on 6/11/07 at 09:12 AM |
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No idea, but I love this....
 
Planets
-----------------------------------------------------------------------------------------------------
The sooner you fall behind, the more time you'll have to catch up.
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Colnago_Man
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| posted on 6/11/07 at 09:36 AM |
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As a resident of Barrow-in-Furness I can confirm that the Sunlight never arrived, wether it set off 8 minutes ago or not....
[Edited on 6/11/07 by Colnago_Man]
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Johnmor
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| posted on 6/11/07 at 10:43 AM |
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Earth to sun varies between 91,miles and 94.5 million Miles. This distance was not known until recently and it is called the astronomical unit or
AU
say 92.5 Average/ 186,000/ sec ( light)
= 497.311827956989247 secs
Divided by 60 =8.28 mins
Or 8mins 16.8 secs.
So if it goes out we have time for a coffee a fag and a couple of **** with the wife before we realise !
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speedyxjs
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| posted on 6/11/07 at 08:08 PM |
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quote:
Originally posted by Liam
quote:
Originally posted by speedyxjs
I know that the light we get from the sun is 4 earth years old
Dunno where you heard that - it's just over 8 minutes
I dunno where i heard it but i thought it was a load of bull when i heard it
How long can i resist the temptation to drop a V8 in?
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