Jupiter picture processed by one of citizen scientists
The picture above is artificially processed by one of the citizen scientists working for NASA. It was composed from monochromatic pictures taken by the space probe Juno, flying in the Jupiter system. Usually spaceships like Juno have only monochromatic, but sensitive cameras, and take such pictures using filters with basic colours. I'm not an expert but I suppose it is some trade off between accuracy and sensitivity. A lot of people are working on such pictures, and results are marvellous, just as you may see above!
The Sun seen from this distance is just bright, but nothing more than a star. It is not a circle on the sky anymore. It is rather a bright point in space.
Photos taken on the Earth's Moon looks like very high contrast, and in fact, even if bright parts of the pictures are very clear, because of lack of the atmosphere, shadows are very deep. Probably if you were on the lunar surface you could not look into shadows because there's no atmospheric scattering of the sunlight. So astronauts probably had their own light sources - just lamps - in order to operate in shadowed areas ( I am not sure it actually was like that).
The human eye can see colors if there is enough light, and proper color vision require "natural sunlight", if ambient light is different than that, our perception of colors is different. What is more, when at dawn or dusk, and at night, the human brain switches off color vision, and uses a monochromatic view instead.
So here it the question: if a person, a "Jupiternaut", was orbiting Jupiter as Juno does, would they see anything with the naked eye? Is there enough light to use color vision, or does it remain similar to a night-time situation on Earth?
