

Solar system scale Greeting Card

Designed and sold by Sketchplanations
$3.70
$2.96 when you buy any 3+
$2.59 when you buy any 10+
$2.41 when you buy any 50+
$2.96 when you buy any 3+
$2.59 when you buy any 10+
$2.41 when you buy any 50+
$3.70
Product features
- Digitally printed cards on heavyweight stock
- Uncoated blank interior provides a superior writing surface
- Each card comes with an envelope for mailing or gifting
- Since every item is made just for you by your local third-party fulfiller, there may be slight variances in the product received

Solar system scale
It’s pretty hard to get to grips with the scale of the solar system. It's really, really, really big.
To help process the vast distances within our system, astronomers use Astronomical Units where 1 AU is the distance of Earth from the Sun. If you see Venus in the night sky, our closest neighbour just 0.7 AU from the sun, it looks impossibly far away. But the further out you go, the more the distances multiply.
Earth and Venus are practically on top of each other compared to Uranus and Neptune. Neptune is a full 30 times the distance between Earth and the Sun.
Now think about the fact that our little solar system is over 250,000 AUs from our nearest star, which is, in turn, just one of many tucked away in a small corner of the Milky Way, which is only one of many galaxies that make up the known universe.
It might be time to sit down.
This sketch, and plenty more in the Starry-eyed Surprises section, features in my book Big Ideas Little Pictures
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