

Professor Harrington was one of the more kind and understanding Professors. When it came to students in her younger years being late to class, she knew it was a long flight up; but as some students in her fifth-year lesson slid through the door at the last second, she gave herself a chance to give them a pointed look before turning to the class. “Kia ora, hello and good evening students. Welcome back to Astronomy, I know last week we jumped right into the Moon and this week we are continuing with important moons of the Solar System,” Professor Harrington said pulling out her notes.
Notes appeared on the board once again and Sarah began to read from her notes going through each of the moons she had listed on the board. The students seemed to take notes throughout the lesson and paid attention, for the most part. She enjoyed teaching about the moons, it was a fun conversation and she couldn’t wait till the end of the lesson.
Enceladus
Orbits: Saturn
Facts: One of the brightest objects in the Solar System, due to its surface of water ice that reflects almost 100% of the Sun’s light. Features an ocean of water under its ice surface. Has potential for harboring life, along with large geysers spewing out icy bits and water vapor. The wobble in its orbit is evidence of a liquid interior.
Europa
Orbits: Jupiter
Facts: Just a fraction smaller than the Moon. Possibly the smoothest objects in the Solar System, with very few craters. The thick surface features red-brown deposits in a fractured pattern. Also has a possible ocean below its surface. The core has geological activity and produces eruptions of water into space.
Ganymede
Orbits: Jupiter
Facts: Largest moon in the Solar System, even larger than Mercury. Has a molten core that has produced its magnetosphere within that of Jupiter. Has a thought atmosphere surrounding the moon.
Io
Orbits: Jupiter
Facts: The most volcanic body in the Solar System, and Jupiter’s third-largest moon. Has an elliptical orbit, that it is forced into by Ganymede and Europa. The moon is also tidally locked like our Moon, causing incredible forces to bulge out the solid surface by as much as 100m. The result is that the moon is almost entirely molten. Volcanoes erupt nearly 190 miles into the atmosphere, easily filling any impact craters.
Titan
Orbits: Saturn
Facts: Titan is the second-largest moon in the Solar System. The only moon is known to have a thick atmosphere, dense enough that the core is completely obscured by the nitrogen and methane clouds. Lakes and rivers of ethane and methane are filled by rains from the orange clouds. This would be a very hostile place for us to visit.
Orbits: Saturn
Facts: One of the brightest objects in the Solar System, due to its surface of water ice that reflects almost 100% of the Sun’s light. Features an ocean of water under its ice surface. Has potential for harboring life, along with large geysers spewing out icy bits and water vapor. The wobble in its orbit is evidence of a liquid interior.
Europa
Orbits: Jupiter
Facts: Just a fraction smaller than the Moon. Possibly the smoothest objects in the Solar System, with very few craters. The thick surface features red-brown deposits in a fractured pattern. Also has a possible ocean below its surface. The core has geological activity and produces eruptions of water into space.
Ganymede
Orbits: Jupiter
Facts: Largest moon in the Solar System, even larger than Mercury. Has a molten core that has produced its magnetosphere within that of Jupiter. Has a thought atmosphere surrounding the moon.
Io
Orbits: Jupiter
Facts: The most volcanic body in the Solar System, and Jupiter’s third-largest moon. Has an elliptical orbit, that it is forced into by Ganymede and Europa. The moon is also tidally locked like our Moon, causing incredible forces to bulge out the solid surface by as much as 100m. The result is that the moon is almost entirely molten. Volcanoes erupt nearly 190 miles into the atmosphere, easily filling any impact craters.
Titan
Orbits: Saturn
Facts: Titan is the second-largest moon in the Solar System. The only moon is known to have a thick atmosphere, dense enough that the core is completely obscured by the nitrogen and methane clouds. Lakes and rivers of ethane and methane are filled by rains from the orange clouds. This would be a very hostile place for us to visit.
Finishing with the Moons on the board Sarah looked over her students. “Of course, there are many more moons in the Solar system, Jupiter alone has at least 79 visible with our telescopes and Saturn 62. I will expect you all to do studying on your own time and become familiar with the largest moons of each planet, up to the fifth largest. Now Mars has two, so don’t complain, that’s already three fewer moons you have to study. Now up to the tower, we are going to point our telescopes to Jupiter tonight, I want you all to locate the four largest moons, also referred to as the Galilean moons,” Professor Harrington said before she started to wave her hands to have the students gather their things and move up to the viewing tower with their telescopes. The rest of the lesson progressed normally as the students gazed up towards Jupiter. She moved around helping students locate the moons and also how to tell the difference between each of the four large moons.
This Week:
Please post an attendance post with your student!
The "homework" mentioned is not necessary, and material outside of what is in the lessons or study guides won't be on the exam.