circumstellar habitable zone

“why are people tagging this as star trek/spirk” hope this helps

Nearly two decades later, I think it just fully hit me why Iroh told Zuko's crew about how he got his scar. It wasn't just to say, "Have some sympathy for him, he had a hard childhood." It was because the crew were all upset (rightfully so) that Zuko had said, "The safety of the crew doesn't matter." and Iroh was trying to point out that, yes, what Zuko had said was wrong, but that's not what he really thinks, at least, that's not what he used to think. There was a time when Zuko cared about the safety of soldiers he had never even met, so much so that he spoke out of turn, which is what led to the domino effect that caused all of them to be sitting on that ship together. And this is brought full-circle when Zuko climbs the ladder to help the helmsman at the end of the episode. And that's when the crew realizes that, temperament aside, Zuko actually has been and is still willing to put everything on the line for the safety of others.

I think most people know this, but just in case someone isn’t aware, just because Vulcan is a desert planet doesn’t mean there’s no large bodies of water. Sure, they’re nowhere near as big as say… the pacific ocean, and I’m not sure I’d classify any of them as oceans, but Vulcan’s got seas, at least. 

And an interesting thought (from someone who doesn’t know much about these things) but would the seas actually have waves and tides? 

From what I can find on Google it seems like without a moon, tides would be about 1/3 of what they are on earth (lower low tide and wouldn’t swell as much at high tide). This is assuming Vulcan is roughly-earth sized. And I would guess that a 1.4x gravity suggests it’s close, but ever so slightly bigger.  

To verify this, for folks who haven’t seen Discovery, there’s a scene where Sarek is at a beach:

Chiming in to say that while Vulcan has no moon, it has a sister planet which does have a moon (That’s what we’re looking at in the sky in Shi’Kahr) and here it is at night!