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FowlOnTheHill t1_j1pwcw8 wrote

Reply to comment by thegagis in Determining the shape of Milky Way by omg-whats-this

I wonder about the delay in time from some of those stars which are hundreds of light years apart. I suppose that’s taken into consideration as well, but it seems like a Herculean task to me without computers.

Imagine if we are just radial spokes and it looks like a spiral because of the time it takes the light to reach us from further away 😄

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imtougherthanyou t1_j1qjrlv wrote

I think because it's slower the further out from center you go that spokes are not going to be more than occasional & brief occurrences.

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