I've used the search tool at this forum, but didn't find an answer to a question: how large a share of Io's sky Jupiter should occupy? A google image search gives (quite predictably) different results.
If (a) the distances between Io and Jupiter, on the one hand, and the Earth and Moon, on the other, is comparable, (b) the diameter of Jupiter is ca. 40 times larger than that of the Moon (142,984 km vs. 3,475 km) and (c) the Moon occupies 0.001% of the Earth's celestial hemisphere, does it mean that Jupiter's apparent size from the surface of Io should be ca. 0.04% of its celestial hemisphere?