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FYI, I created a new tag, . I thought I should ask it not if I was too lame to ask before creating, so there wouldn't be too late to delete it in case.

Is this tag necessary or is tag enough? (there's not even so clear for me the difference between the two worlds)

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    $\begingroup$ This was resolved by getting rid of the trajectory tag, despite the answer below. $\endgroup$
    – called2voyage Mod
    Aug 30 '19 at 18:21
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It's perfectly reasonable to have both, in my opinion. They aren't really the same thing. Orbit might be considered of course as a type of trajectory (i.e. orbital trajectory), but what's usually implied with the latter is non-orbital trajectories, such as parabolic-, hyperbolic-, ballistic-,... So yeah, I say we keep them both, see if they later need further differentiation.

By the way, that question you tagged with , I'm not sure it really needs it, since it already uses and you're specifically asking about orbital trajectories. There might be a point in making a synonym of tho, but that's probably best asked as a different question, or just asked of community managers moderating the site now through flags on your question. @JonEricson is experienced and knowledgeable enough on the subject to simply do it with respect to what's best for the community, if prompted to it by a flag, I have no doubt. ;)

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