# 🌍 How accurate is the LEGO Technic 42179 Planet Earth and Moon in Orbit set?

*Published: 2024-04-03 | Updated: 2024-07-24 | Source: https://shopsavvy.com/answers/how-accurate-is-the-lego-technic-42179-planet-earth-and-moon-in-orbit-set*

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## Product: LEGO Technic Planet Earth and Moon 42179
**Brand:** LEGO

The LEGO Technic Planet Earth and Moon in Orbit set (model number 42179) is a pretty cool way to get a hands-on feel for how celestial bodies move. 

It's got this crank mechanism that lets you manually simulate how the Earth and the Moon orbit. So, it's all about those gear-driven components—no fancy electronics or motors right out of the box.

From what we've gathered, a lot of LEGO fans have taken it a step further and added their own motors to the mix. The set doesn't come with motorized parts, but there's a whole community out there sharing tips and tutorials on how to connect a [LEGO Power Functions motor](https://www.shopsavvy.com/redirect?url=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DLEGO%2BPower%2BFunctions%2Bmotor%26tag%3Dssw.ans.tx-1-20) to this set. 

You can find plenty of advice and creative solutions on LEGO fan sites and forums if you want to give it a shot. Just keep in mind that going the motorized route could mean spending a bit more, especially if you don't already have a compatible LEGO motor set. 

Plus, you'll want to be sure you have the right parts and setup to safely motorize your model while keeping everything stable and working as it should.

Even without the motor, though, the set is a neat educational tool. It gives a hands-on demonstration of Earth's and the Moon's orbits that you can explore manually. 

And if you do end up motorizing it, that opens up a whole new level of learning about engineering concepts, too. Whether you stick with the original setup or decide to pimp it out a bit, it's a fun way to dig into both astronomy and mechanics.

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| Mercari | $59.00  | Check |
| Amazon | $59.95  | Check |
| Maziply Toys | $59.95  | Check |
| JOANN | $74.99  | Check |
| Kohl's | $74.99  | Check |
| QVC | $74.99  | Check |
| Target | $74.99  | Check |

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*Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from thousands of retailers, and analysis of user reviews to give you a well-rounded picture.*