Does it take a longer, same, or shorter time to measure a parallactic shift from Pluto as compared to the Earth? Why?

↳Redirected from "Suppose that I don't have a formula for #g(x)# but I know that #g(1) = 3# and #g'(x) = sqrt(x^2+15)# for all x. How do I use a linear approximation to estimate #g(0.9)# and #g(1.1)#?"
1 Answer
Oscar L.
Apr 13, 2016

It will take longer from Pluto than from Earth. In its irbit around the Sun, Pluto moves much more slowly than the Earth.

Explanation:

Pluto does cover a much larger range by being farther from the Sun than Earth, so you can in principle measure parallax for a lot more stars from Pluto. But traversing that range (by going 180 degrees in the orbit) to see the full parallax effect from Pluto takes over a hundred years.

Related questions
See all questions in The Planets
Impact of this question
1848 views around the world
You can reuse this answer
Creative Commons License