Nodding enthusiastically (which was pretty much his normal nod, as everything the boy did seemed to come off a pretty enthusiastic) Darwin bit down on his lip a little as the boy repeated him.
"Yeah, those things." Waving an arm in the direction of the sky, he turned to look at the 'consternations' that he didn't know anything about.
"Didn't I say that?" he added as he was corrected - Darwin accepted that he was in the wrong, though, and shrugged it off. He wasn't particularly bright, no matter what the Sorting Hat had said; he needed to try hard, and to try hard he needed to know stuff.
And he didn't really know stuff about Astronomy. Not yet, anyway.
Looking back at the boy and following his arm, Darwin studied the stars he was pointing out.
"That's pretty cool," he managed, nodding again.
"I know that that's the North Star," he said, pointing to a star near to the 'saucepan like' constellation.
"And it tells you which direction's north." Oh, what an interesting fact; kudos to Darwin. Not.
"It kinda does," he agreed, admiring the saucepan-shape, and the information that the boy seemed to have.
"I think I've heard of it before though... something to do with a bear. But it doesn't really look like a bear. So maybe I'm wrong." He added as an afterthought, his voice getting fainter as he spoke. Maybe they'd learn some more, in lessons.
At the tone of worry in the other boy's voice, Darwin began to anxiously rock on his feet.
"I hope not. There's lots of them, isn't there? And like, millions and billions of stars. That would be hard." And his brain could not cope with that - he'd barely been able to remember his twelve times table, let alone millions of billions of stars and stuff.
