---
title: "What are the name of Galilean moons?"  
description: "What are the name of Galilean moons?"  
author: "Ronan Jone"  
published: 2018-03-01  
canonical: https://answers.mindstick.com/qa/35768/what-are-the-name-of-galilean-moons  
category: "science"  
reading_time: 2 minutes  

---

# What are the name of Galilean moons?

## Answers

### Answer by Sanjay Goenka

There are **four Giant Moons** of**[Jupiter](https://answers.mindstick.com/qa/35769/mostly-which-gases-found-of-the-planet-jupiter)** those are called the ‘**Galilean Moon**s’ and the names are **[IO, Europa, Ganymede, Callisto.](https://www.nasa.gov/sites/default/files/files/Moons_of_Jupiter_Lithograph.pdf)\** \
![What are the name of Galilean moons?](https://answers.mindstick.com/questionanswer/34dcea39-4967-41c8-8335-95287bac43d9/images/9d44203d-2914-4dab-843e-de339eb41463.jpeg)\
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**[Discovery](https://www.mindstick.com/news/2200/newly-identified-protein-by-researchers-at-the-university-of-arizona-might-save-lives) of Galilean Moons** The Moon of Jupiter which is also known as the Galilean Moons and **individually it is known as the Galileans** have **taken their names from** the great **astronomer [Galileo Galilee of Italy](https://plato.stanford.edu/entries/galileo/). He discovered them in 1610 between 7 to 13 January.** He described these Galileans at his time as the ‘**Three fixed Stars**’ which are not visible due to their smallness using his **own made ‘[Telescope’](https://www.space.com/15693-telescopes-beginners-telescope-reviews-buying-guide.html)** now it has been repaired and stored in the Museum. All three of these space [objects](https://www.mindstick.com/articles/1807/objective-c-data-types-variables-object-creation) are **very close to Jupiter** and are aligned in a straight line. \
The **[research](https://www.mindstick.com/articles/311609/how-to-research-the-companies-before-applying-to-their-open-positions) of Galileo told** that their position is changing as far as the concern with the **[behavior](https://www.mindstick.com/blog/300890/what-is-conduct-disorder) of stars** which was an inexplicable statement. Galileo was in an illustration of it and hence he again researched it and on **10 January** he **noticed that** one of them had **disappeared** and the **reason behind this was** that a particular **object was hidden behind Jupiter.** And after a few days of completing his observation, **he told** that actually **they are not stars** and they are **orbiting Jupiter** and hence **they are in fact Moons of Jupiter**. And by the **13 January, he had discovered a fourth Moon and named them as Medicean stars.** \
**Facts of the Galileans** **IO** Distance from the Jupiter is **422,000 Km.** The radius of the IO is **1821.6 Km**. The orbital period is **1.769 earth Days.** Density is **3528.** \
![What are the name of Galilean moons?](https://answers.mindstick.com/questionanswer/34dcea39-4967-41c8-8335-95287bac43d9/images/428908b8-374d-4ac2-9041-8e166240de06.jpeg)\
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**Europa** Distance from Jupiter is **671,000 Km** Mean radius is **1560.8Km** The orbital period is **3.551 earth days.** **The density of the Mon is 3.013.** \
**Ganymede**\
The distance from Jupiter is **1,070’000 Km.** The mean radius is **2631 Km.** The orbital period i**s 7.155 earth days.** The density is **1.942.** \
![What are the name of Galilean moons?](https://answers.mindstick.com/questionanswer/34dcea39-4967-41c8-8335-95287bac43d9/images/75f7229a-99e8-4b22-a476-20405775d47a.jpeg)\
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**Callisto** The distance from Jupiter is **1,883,000 Km.** Mean radius is **2410 Km.** Orbital period is **16.68 earth days** The Density is **1.834 Km**. \

## Read More : [Which Galaxy Is Closest to Our Galaxy?](https://answers.mindstick.com/qa/35767/which-galaxy-is-closest-to-our-galaxy)


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