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How to read this orbital graph?

by Windows
Tags: graph, orbital
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Windows
#1
Sep2-13, 09:53 AM
P: 21
Hello
I'm not a professional cosmologist but I wanted to know what the orbital length is equal to in Km units in this graph: http://ej.iop.org/images/1538-4357/7...34146f3_lr.jpg

Thank you so much.
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wotanub
#2
Sep2-13, 12:02 PM
P: 218
That graph shows right ascension and declination. These "sky coordinates" allow you to trace out the path of the object in the sky as viewed through a telescope. I don't think this is enough information to determine the how far it is away from the body it is orbiting.


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