Is Europa visible to the naked eye? Can you see Europa with the naked eye?

In the case of extreme atmospheric cleanliness and vision, the ultimate visual magnitude of people is generally 5-6 (the smaller the value, the brighter it is), so from this point of view, Europa is visible.

However, Europa is too close to Jupiter, and there are three other Galilean moons, so basically no one can tell the difference, and what can be distinguished is also the illusion of four Galilean moons coming together, but there is no doubt that there are gods and men who can see, and if you have eyesight, you should be able to go to the uninhabited area of Siberia, Russia.

Absolutely invisible to the naked eye, you can come to this conclusion by thinking about it! If you use an astronomical telescope, like my Boguan 70 900, magnified 100 times with a K9 eyepiece, you can faintly see next to Jupiter. I!

It must be invisible to the naked eye, and Chinese literati are like this, always boasting, saying that they can see the Great Wall in space, and they can see a p. In addition, the brother who went back to the 2nd floor, it was a waste to put Boguan in your hands, hehe, don't be angry. Back then, Galileo used a self-made 36x telescope to discover 4 moons of Jupiter.

My introductory birdscope, Phoenix F50 360, bought at 80 Ocean, 40 times the Huygens eyepiece, I can see the four satellites very clearly. Speechless...

I can see it with low-powered binoculars, but the light and air in the city today are poor, which should be about the same as in Gander more than 2,000 years ago. Gander was barely nearsighted at the time. Besides, ancient texts are not necessarily fake, and the ancients did not intend to falsify them, and they did not know the significance of discovering Europa.

Generally not, unless your eyesight is excellent, there is very little light pollution, and there is no moonlight that night.

The landlord can refer to what I am here.

Not with Egypt, with the Maya, with Babylon because they can't do it now, but with Europe because Europe has been stronger than us for hundreds of years. This is also good, now it is stronger than the three ancient civilizations, and in the past it was ...... stronger than Europe and North America

Actually, I'm also a little aesthetically fatigued, but although there are some elements of exaggerated exaggeration, after all, most of them are historical, and many things have really contributed to the progress of the world.

In addition, some friends upstairs, they can't see it doesn't mean that everyone can't see it, with their actual experience, if you see it, it will definitely explain the problem, if you don't see it, you can't explain anything. And I wonder how some people can come to this conclusion by thinking about it, or without a doubt not seeing? Why can I see the results of my calculations?

And I would like to say that for the 4 Galilean satellites to be seen, one binocular is absolutely enough!

Theoretically, yes.

Io to Callisto at opposition mean apparent magnitude equal, with Jupiter.

The angular distance is 2'18" 10'18", and the limit visual magnitude that can be seen is 6 for people who are dressed up as years, and the wooden collar can be distinguished.

for 60" so they should be visible to the naked eye. Of course, it is not easy to see Jupiter with the naked eye because of the bright Jupiter next to them, but it is not unseen by no one, and according to Humboldt, a man named Shawn (Schon), when he was young, was in the moonless.

On a clear night, the position of the four Logis can be pointed out quite precisely. In the Beijing Planetarium, a simulated real bird made of the light guide glass filament of the planetarium showed that Ganymede.

It can only be seen when the hall is 5' away from Jupiter.

Europa is like the moon. Humans see through ultra-high-precision cosmic telescopes, which have a high-precision field of view and can see very far away.

It is said that Ganymede contains a lot of water, even more than 90 percent, and is a complete water balloon that humans have observed through astronomical telescopes.

Europa is a flat, egg-shaped shape that was photographed by explorers in space at a specific time.

Ganymede has an average radius of only one kilometer, which is twice the size of the Earth, a mass only twice that of the Earth, and a volume only twice that of the Earth. Obviously, Europa is smaller than Earth.

Ganymede was discovered by Galileo and Marius in 1610.

Upstairs, Galileo found that everyone on Ganymede knew about it. But, have you ever seen Encyclopedia - Jupiter? There is such a paragraph:

For many years, it was thought that Europa was discovered by Galileo Galilei in 1609 through his homemade telescope, along with Callis.

1. Ganymede. 2. Ganymede is known as the Galileo moon. In fact, Ganymede was discovered by Gander, an astronomer from the Warring States period in China, who wrote two books, "The Book of Stars of the Year" and "Astronomical Astrological Horoscope", but unfortunately they have been lost.

There is such a record in the twenty-third volume of the "Kaiyuan Zhanjing" compiled by the Tang Dynasty astronomer Qu Tan Siddha: "Gan said: The age of the single cast, the setig is in the mao, the year star is in the son, and the bearded girl, the void, the danger of the morning and the evening in, its shape is very large and bright, if there is a small red star attached to its side, it is called an alliance."

Gander discovered Ganymede as early as 346 BC, almost 2,000 years before Galileo.

Of course, this only represents the opinion of some people. Personally, I think Gander is likely to see Ganymede, but most likely doesn't know that it's Jupiter's moon. And Galileo did discover Ganymede.

You can search for the article "Gander discovered that Ganymede has this theory". And [Novice Advice: What do you think about Gander's discovery of Gander? If you search for it, you can see it.