[Mossly]

0.5 arcminutes really puts this into perspective — for reference the orion nebula spans about 1 degree

[p1mrx]

for further reference 0.5 arcminutes ≈ 0.01 degrees

[adzm]

for further reference this is about half the width of your finger at arms length held up against the sky

[jcims]

You’re thinking of degrees.

Half an arcminute is 1/120th of a degree and is roughly the diameter of Jupiter in the night sky. There are about half a billion patches of night sky that are half an arcminute on each side.

It’s also about the size of a softball from a kilometer away.

[adzm]

Oops, you are right, which makes this even more impressive!