this post was submitted on 17 Jan 2024
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[–] xantoxis 12 points 10 months ago (2 children)

Anyone, math on how big that planet is?

[–] adam_y 9 points 10 months ago

Yeah, pretty big²

With a margin of error of "some".

[–] owenfromcanada 9 points 10 months ago* (last edited 10 months ago) (1 children)

Ridiculously rough calculations:

Earth's diameter is about 12,700km. This looks roughly 30 times that, so we'll say 380,000km across, or a circumference of about 1,200,000km (compared to earth's measly ~40,000km).

This puts the overall size somewhere between Jupiter and the sun (probably closer to the sun).

In terms of volume, you could fit about 10,000 standard earths inside the hollow ice ball.

Give or take an order of magnitude.

[–] kemsat 3 points 10 months ago (1 children)

Large enough for that ice to split into hydrogen & oxygen, and then start fusion?

[–] owenfromcanada 2 points 10 months ago

If it were hollow, probably not, because there presumably wouldn't be that much mass.

If you crammed 10,000 earths in there? Maybe!