2853: "Redshift"

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ratammer
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2853: "Redshift"

Post by ratammer »

Image
Title text: So do you have any plans for z=-0.000000000000045?

So yeah, I had to look this one up. z=0 is the present and a higher number is further in the past, when you're measuring how long ago you're seeing into the past when you look at a distant object, measured using its redshift.
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moody7277
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Re: 2853: "Redshift"

Post by moody7277 »

For z<<1, you can just multiply by the age of the universe to get how long she's talking about.
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