Harry Potter Astronomy with Constellations and Jupiter’s Moons
Harry Potter Astronomy
As a kid I couldn’t be bothered with constellations, but as an adult I started learning how to spot some of them. Turns out, with a bit of practice, it’s quite easy to find and remember the constellations. Just like with anything! We are trying to make it a goal to go out more often at night and just watch the night sky. In our city there are light ordinances so it’s actually not a bad place to star gaze!
I decided to focus on 3 constellations that are most related to Harry Potter: Canis Major, Lupus, and Draco the Dragon. Canis Major is a dog constellation and the brightest star is called Sirius. Sirius in Harry Potter is an animagus who turns into a big black dog.
Lupus is a werewolf and likely to inspiration for Professor Lupin.
Draco Malfoy is named after Draco the Dragon.
So I’ve prepared a few constellation pages with skip counting! Connect the dots to see the constellation.
Jupiter’s Moons
In Harry Potter and the Order of the Phoenix (book 5) the students are assigned an essay on Jupiter’s moons. Thanks to Hermione’s diligence in correcting Ron and Harry’s essays, we learn about a few of the moons.
Now, I’m not sure about anyone else, but when we study moons we rarely get to talking about other planet’s moons. So what could be more fun than picking up a few more moon facts?
Here’s a bit of what I learned:
- Our moon is one of the largest in our solar system
- Jupiter has 67 moons but Ron, Harry, and Hermione were discussing the Galilean moons, the four largest of Jupiters moons
- Galileo discovered the first four moons in 1610 but he did not name them.
- As stated in the books, Io does have volancoes and Europa is covered in ice. Ron stated that Callisto is the largest of the moons, but it’s actually Ganymede (which Hermione does correct)
Instead of making a traditional solar system, we decided to paint rocks to represents the Earth, our moon, Jupiter, and Jupiter’s four largest moons.
For size reference, our moon is about 1/4 the size of the Earth. Ganymede and Callisto are about 1/3 the size of the Earth. Io is slightly largest than our moon and Europa is slightly smaller.
It took us awhile to find rocks fitting all those descriptions but we did! Jupiter is a little more than 11 times as big as Earth. We did not have a rock to fit that but you might be able to find one.
Harry Potter Star Gazing
No astronomy unit would be complete without star gazing. We printed out a copy of Uncle Al’s Sky Wheel that was modified to include Bellatrix and Alphard. Then we laid out a blanket and waited for the stars to come out. There are many apps today to help with star gazing, but I have not used one enough to recommend. Try a few to see one that works. Unfortunately, stars change based on season and location so there is not one size fits all option.
We tried to get ready early in the day so we could just go enjoy the stars that evening. I had two little ones that didn’t quite feel like waiting…
Go Here to Download the Harry Potter Constellations Skip Counting Set