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PJMcK

(23,768 posts)
1. If Mercury actually doesn't change direction...
Wed Apr 19, 2023, 04:52 PM
Apr 2023

... why is it considered in retrograde?

This seems to me to contradict the facts of orbital mechanics. Can this be explained? Otherwise, as you point out, it's an optical illusion and shouldn't be considered in evaluating our solar system.

It's very confusing to me.

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If Mercury actually doesn't change direction... PJMcK Apr 2023 #1
Sorry, I don't understand Cha Apr 2023 #2
Thanks for your honest response PJMcK Apr 2023 #10
Ooh, Delphinus Apr 2023 #18
Because we are not viewing planets from a stationary platform Effete Snob Apr 2023 #6
+1 2naSalit Apr 2023 #9
Mahalo for that Vivid Schematic animation of Mars retrograde Cha Apr 2023 #11
Thanks for the visual explanation. Much appreciated. PJMcK Apr 2023 #12
You did well, PJMck. Really Cha Apr 2023 #15
So? Effete Snob Apr 2023 #16
Very informative. Meadowoak Apr 2023 #3
Great.. Good to know it was Cha Apr 2023 #5
absolutely. Meadowoak Apr 2023 #7
Thanks for the info! slightlv Apr 2023 #4
You're Welcome, slightlv Cha Apr 2023 #8
Cha................. Upthevibe Apr 2023 #13
You're So Welcome, UPthevibe Cha Apr 2023 #14
NOOOOOOOOOOOOOOOOOO! Me. Apr 2023 #17
Aloha Me Cha Apr 2023 #19
Only 3 This Year Me. Apr 2023 #20
Yeah the author, Aliza Kelly, Cha Apr 2023 #21
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