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I have asked these two questions 1, 2 that are related to spacecraft trajectories outside the Solar system. The primary reason why I asked them was to assist in my understanding and visualization (with regards to the galaxy plane) of the current and future trajectories of the 5 spacecraft that are leaving the Solar System (maybe I should've asked that question directly to start with).

It was suggested for one of the asked questions that it was

...probably more likely to receive authoritative answers in Astronomy SE than (it) might here, and galactic trajectories might not even be on-topic here since they don't reflect aspects of Space Exploration normally discussed here. But let's see what happens!

Below are the current related guidelines on what topics to ask:

Trajectory design, orbital and celestial mechanics

and what topics not to ask:

Physical sciences, such as geology, astronomy, cosmology, meteorology, except as they relate to spacecraft and space exploration

So I decided to bring this up here. I would kindly ask members of the Space Exploration community to express their opinion here (to obtain some kind of "voting"): if there would be 5 opinions expressed, and 3 of them would be that the asked questions don't really belong here, I would intend to delete them here and reask on Astronomy SE (unless there is a procedure to transfer existing question between the sites).

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    $\begingroup$ If it were my question, I'd ask it on the site where it's likely to get the best answer. A few years ago I used reflexively challenge topicality recommendations. but then I realized that I was being guided towards the best answers. $\endgroup$
    – uhoh
    Feb 2, 2020 at 14:15

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Yes, these are on topic here. Of course, as uhoh said, you may decide that other sites will get you better/quicker answers to these types of questions, but they are perfectly welcome here.

That said, I'm pretty sure both of these are actually off topic on Astronomy. We have ruled that questions about spacecraft are only allowed when they are about doing astronomy with a spacecraft, or questions about observing satellites' orbits. In this case, I think the suggestion to move the question there was bad advice.

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  • $\begingroup$ You're right of course. Thought the spacecraft aspect is in my opinion a red herring, as currently written it shouldn't be moved there, even though (also in my opinion) the people who can write the most authoritative answer are there. $\endgroup$
    – uhoh
    Feb 4, 2020 at 0:43

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