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ScreamingNightHog t1_ix1os48 wrote

Jupiter's diameter 140,000 km
Mars diameter 6792 km
Jupiter is about 20x as wide as Mars

Mars is about 9300 arcseconds.
So Jupiter in Mars's spot would appear about 20x that, about 186,000 arcseconds

The Moon is about 1800 arcseconds, so Jupiter in Mars's spot would look about 100x as big as the Moon. That seems awfully big; I must have made a mistake.

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disagree83 t1_ix1qx6o wrote

>Mars is about 9300 arcseconds.

This is the mistake. Mars is about 25 arcseconds at its closest.

https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html

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damo251 t1_ix2pv62 wrote

And Mars will only get to 17.2arc sec this year and Jupiter gets a smigin over 50 but only 49 arc sec this year.

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Azdrubel t1_ix30zt1 wrote

That would put Jupiter at 400 arcseconds? Like holy shit, 20% of the moons visual size?!

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