27 ms·

AT 10 trillion kms = 1 light year, 10 quadrillion km = 1000 light years, 10 quintillion kms = 1 million light years. Since Andromeda galaxy is 2.5 million light

AT 10 trillion kms = 1 light year, 10 quadrillion km = 1000 light years, 10 quintillion kms = 1 million light years. Since Andromeda galaxy is 2.5 million light years away, you are looking at an object 25 quintillion kms away. If that doesnt ring a bill, that is 25000 quadrillion kms away, 25 million trillion kms away! , 25 billion billion kms away!!! Simply put if you travelled 1 billion kms that would be 0.000000004% of the way to reach Andromeda galaxy. Imagine that!

TheSpiceIsLife 2y ago
Recreational mathematics, fun. And if we could see it with the naked eye it would appear six times bigger than a full moon.
- chgs 2y ago
  It’s about the width of three finders on an outstretched hand.
- mytailorisrich 2y ago
  It is visible to the naked eye in good locations and conditions, actually.
divbzero 2y ago
And yet, Andromeda is the closest major galaxy to the Milky Way: next door neighbors in the small patch of the Universe known as the Local Group.
- vivzkestrel 2y ago
  the further ones such as the cartwheel galaxy = 500 million light years = 5000 quintillion kms and hoag's object 600 million light years at 6000 quintillion kms are unfathomable to like ever reach. Given a quintillion has 1 followed by 18 zeroes, to cover 0.1% of a quintillion, we gotta travel 1 quadrillion kms, how the hell do we ever do that
  - airstrike 2y ago
    Wormholes!
timewizard 2y ago
> If that doesnt ring a bill That'll be 23 Zettameters, please.
WA 2y ago
And even more: Every object you can see with the naked eye in the sky is within our milky way, except for the Andromeda galaxy and a handful of other galayies. If you know exactly where to look, you can see it as a little cloud with the naked eye. https://en.wikipedia.org/wiki/List_of_galaxies#Naked-eye_galaxies https://en.wikipedia.org/wiki/List_of_galaxies#Naked-eye_gal...
- xhrpost 2y ago
  That led me down a bit of a rabbit hole and I found this https://en.wikipedia.org/wiki/List_of_galaxy_groups_and_clusters#Groups_and_clusters_visible_to_the_unaided_eye https://en.wikipedia.org/wiki/List_of_galaxy_groups_and_clus... So there are actually a few galaxies visible with the naked eye outside of our local group even. However, all are within our local supercluster.
dreamcompiler 2y ago
Star Trek ships travel (very roughly) 1000x the speed of light at Warp 9. So it would take the Enterprise (or Voyager) 2500 years to reach Andromeda at max speed.
- vivzkestrel 2y ago
  that is still unfathomably slow i am afraid, looking at farther galaxies like the cartwheel galaxy at 500 million light years or hoag s object at 612 million light years, this star trek ship would take 50000 years at the minimum to reach there

TheSpiceIsLife 2y ago

Recreational mathematics, fun. And if we could see it with the naked eye it would appear six times bigger than a full moon.

chgs 2y ago
It’s about the width of three finders on an outstretched hand.
mytailorisrich 2y ago
It is visible to the naked eye in good locations and conditions, actually.

divbzero 2y ago

And yet, Andromeda is the closest major galaxy to the Milky Way: next door neighbors in the small patch of the Universe known as the Local Group.

vivzkestrel 2y ago
the further ones such as the cartwheel galaxy = 500 million light years = 5000 quintillion kms and hoag's object 600 million light years at 6000 quintillion kms are unfathomable to like ever reach. Given a quintillion has 1 followed by 18 zeroes, to cover 0.1% of a quintillion, we gotta travel 1 quadrillion kms, how the hell do we ever do that
- airstrike 2y ago
  Wormholes!

timewizard 2y ago

> If that doesnt ring a bill That'll be 23 Zettameters, please.

WA 2y ago

And even more: Every object you can see with the naked eye in the sky is within our milky way, except for the Andromeda galaxy and a handful of other galayies. If you know exactly where to look, you can see it as a little cloud with the naked eye. https://en.wikipedia.org/wiki/List_of_galaxies#Naked-eye_galaxies https://en.wikipedia.org/wiki/List_of_galaxies#Naked-eye_gal...

xhrpost 2y ago
That led me down a bit of a rabbit hole and I found this https://en.wikipedia.org/wiki/List_of_galaxy_groups_and_clusters#Groups_and_clusters_visible_to_the_unaided_eye https://en.wikipedia.org/wiki/List_of_galaxy_groups_and_clus... So there are actually a few galaxies visible with the naked eye outside of our local group even. However, all are within our local supercluster.

dreamcompiler 2y ago

Star Trek ships travel (very roughly) 1000x the speed of light at Warp 9. So it would take the Enterprise (or Voyager) 2500 years to reach Andromeda at max speed.

vivzkestrel 2y ago
that is still unfathomably slow i am afraid, looking at farther galaxies like the cartwheel galaxy at 500 million light years or hoag s object at 612 million light years, this star trek ship would take 50000 years at the minimum to reach there