In ROTJ Palpatine arrives in the Endor system aboard a standard Star Destroyer. This has always seemed odd to me. After all, Lord Vader has the Executor, a Super-class Star Destroyer at his disposal. I would think not wanting to be outdone by his apprentice, the Emperor would have had a ship at least equal to Vader's in size. What was the name of that SD Palpatine arrives on? Who captained it? Did he always use that particular ship? In the EU, did Sidious have something more impressive?