“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy
post
Ok... here goes something absurd:
I found that the Neutrino Background, emitted when the Universe was one second old, has a cosmological redshift of... hang on to your Stetson, fellas... z = one billion.
Using an online redshift calculator from UCLA, the distance works out to this ballpark number, which can't be right, can it?
46,374,897,217,000,000,000 light years.
I haven't had my coffee yet, so I'm not going to try formulating the equation because I'll get it wrong, but given that you have all the factors, you should be able to do some quick math and get a good estimate. Assuming expansion is constant, anyway. It's not, but you could at least get an upper and lower bound.
replies:
all 4 comments