ohhhh, this is good!

Using the 3.9m AAT, Sarah Caddy and Lee Spitler (from our school!) were able to track Orion on its return trajectory ...

... when the astronauts were still 200,000 km away from Earth! 🤯

That's at a distance of ~16 Earth diameters away, and Orion is a tiny tiny tiny spaceship at such great distances ....

But a big 3.9m telescope is also a handy toy to play with!

via AAL LinkedIn

#ArtemisII #Astrodon #Australia #Telescopes

@CosmicRami Isn't it like 5 earth diameters?

@TheSecondVariation

The diameter of Earth is about 12,756 km.

You are thinking of the equatorial circumference which is about 40,075 km.

https://en.wikipedia.org/wiki/Earth

@CosmicRami

Earth - Wikipedia