At the risk of taking a geocentric position, my gut feel is Terra -> Luna -> Sol -> Astra. Sorting algorithm is distance from observer.

Size wise Astra is not categorically bigger than Sol, both in absolute terms and the observed size.

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Mogzol 6 hours ago | parent | next [-]

Astra is latin for "stars", so basically the Galaxy (or Universe as a whole) which is categorically bigger than Sol, the sun, a single star.

The naming makes perfect sense to me, the sorting algorithm is size, both for the names and for the models themselves. Smaller things represent smaller models, and vice versa.

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VTimofeenko 6 hours ago | parent [-]

> the Galaxy (or Universe as a whole) which is categorically bigger than Sol, the sun, a single star.

I would need to be a complete moron to argue with this. Humor me, however. My Latin skills end at remembering "Romani Ite Domum" and English is not my first language.

My layman reading of the names: there is one Terra, one Luna and one Sol => "Astra" is singular.

Now that I googled it, I understand that "Astra" literally means the "Stars" category. I would not have thought that they called a single star "Astrum". On the other hand, I am not sure if it means "Galaxy" in modern sense, but we're entering Roman Astronomy territory, where I am even less knowledgeable than in the language.

Sol is a star, so having a dedicated Stars category on the naming scale makes less sense. Treating Astra as Stars set without Sol, the "distance from observer" argument still kind of makes sense.

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warkdarrior 5 hours ago | parent [-]

> My layman reading of the names: there is one Terra, one Luna and one Sol => "Astra" is singular.

That is incorrect. "Astra" is Latin for "stars" (plural). The singular would be "astrum".

	▲	sixtyj 4 hours ago \| parent [-]
		Ad Astra. To the stars.

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dwaltrip 2 hours ago | parent | prev | next [-]

Size is by far the most obvious one, at least for me.

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__mharrison__ 6 hours ago | parent | prev | next [-]

Yeah, this was my initial thought as well... I guess they didn't ask anyone before choosing the new naming scheme. But that isn't particularly surprising.

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80fj0348i 6 hours ago | parent | prev | next [-]

It doesn't help that the moon and sun have roughly the same apparent size in the sky

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taytus 6 hours ago | parent | prev | next [-]

Why on earth (no pun intended) would anyone do this?

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nimchimpsky 4 hours ago | parent | prev [-]

[dead]