light year fun

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chasmanian United States of America
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light year fun

#1

Post by chasmanian »

greetings fellow earthlings,

I did a little calculating, using an online big number calculator.
I wondered how tall, I and the average earthling are, in:
light years.

here's what I came up with.
anyone who is interested, is most welcome to double check my math.
I would not be surprised if I made a mistake.

using 5.5 feet tall for average human height, and 5.88 trillion miles for distance of a light year:

us human beings are ~ 2 ten million billionths of a light year tall.
and,
5.2 million billion human beings layed end to end,
would make 1 light year.

onward and upwords,
Charlie
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Re: light year fun

#2

Post by Gmetric »

chasmanian wrote: Fri Jan 17, 2025 11:32 pm greetings fellow earthlings,

I did a little calculating, using an online big number calculator.
I wondered how tall, I and the average earthling are, in:
light years.

here's what I came up with.
anyone who is interested, is most welcome to double check my math.
I would not be surprised if I made a mistake.

using 5.5 feet tall for average human height, and 5.88 trillion miles for distance of a light year:

us human beings are ~ 2 ten million billionths of a light year tall.
and,
5.2 million billion human beings layed end to end,
would make 1 light year.

onward and upwords,
Charlie
Little aren’t we lol

How long does it take for light to travers the average hoooman? and how about an AU and a parsec? They feel left out! And how much would you be length contracted at the photon sphere of a black hole with the mass of the sun? 😉

https://en.wikipedia.org/wiki/Astronomical_unit

https://en.m.wikipedia.org/wiki/Parsec

https://en.m.wikipedia.org/wiki/Photon_sphere

https://en.wikipedia.org/wiki/Solar_mass

https://en.m.wikipedia.org/wiki/Length_contraction
Arry (Bortle 7 area)

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Mount: Sky-Explorer HEQ 5 belt driven
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Gfamily Wales
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Re: light year fun

#3

Post by Gfamily »

The speed of light in non standard units is 1ft per nanosecond.
72mm Lightwave Refractor, SW 127 Mak, generally on AZ Gti mount
New Seestar50 for imaging fun
www.midcheshireastro.co.uk for astro company
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Re: light year fun

#4

Post by Mike Q »

Ok.... You guys have way too much time on your hands lol
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Re: light year fun

#5

Post by Gfamily »

Mike Q wrote: Sat Jan 18, 2025 5:23 pm Ok.... You guys have way too much time on your hands lol
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72mm Lightwave Refractor, SW 127 Mak, generally on AZ Gti mount
New Seestar50 for imaging fun
www.midcheshireastro.co.uk for astro company
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chasmanian United States of America
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Re: light year fun

#6

Post by chasmanian »

Gmetric wrote: Sat Jan 18, 2025 12:47 pm
chasmanian wrote: Fri Jan 17, 2025 11:32 pm greetings fellow earthlings,

I did a little calculating, using an online big number calculator.
I wondered how tall, I and the average earthling are, in:
light years.

here's what I came up with.
anyone who is interested, is most welcome to double check my math.
I would not be surprised if I made a mistake.

using 5.5 feet tall for average human height, and 5.88 trillion miles for distance of a light year:

us human beings are ~ 2 ten million billionths of a light year tall.
and,
5.2 million billion human beings layed end to end,
would make 1 light year.

onward and upwords,
Charlie
Little aren’t we lol

How long does it take for light to travers the average hoooman? and how about an AU and a parsec? They feel left out! And how much would you be length contracted at the photon sphere of a black hole with the mass of the sun? 😉

https://en.wikipedia.org/wiki/Astronomical_unit

https://en.m.wikipedia.org/wiki/Parsec

https://en.m.wikipedia.org/wiki/Photon_sphere

https://en.wikipedia.org/wiki/Solar_mass

https://en.m.wikipedia.org/wiki/Length_contraction

thank you everyone who replied.
and love this, thank you Arry.
about 8.3 light minutes for the AU. not sure about the others.
but
here's another thing I calculated.
knowing that the
earth travels about 584 million miles in 1 orbit around the sun.
and the speed of light is 670,616,629 mph.

if the earth was a photon or a beam of light, it would make one complete orbit around the sun in
a little over 52 minutes.
(as compared to traveling at its relatively snail's pace of average speed ~ 67,000 mph, and taking a year.)
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Re: light year fun

#7

Post by chasmanian »

I told a friend about this, and he said wow, think of how fast the seasons would change. :)
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