Saw it a second time. A few observations: (Off-Topic)

by ZackDark , Not behind you. NO! Don't look., Monday, January 11, 2016, 02:34 (3243 days ago) @ Ragashingo

4. The star system the New Republic was in was never named. Only the system the Resistance base was in was named.

Actually, Poe directly mentions it as Hosnian system when he introduces Finn to Leia. The name is further confirmed in both the EU and the novelization of the movie.

5. Fin and Han look up into the sky of Maz's planet and sees the Republic planets getting destroyed. Not just the beam that destroyed crossing the galaxy. But the actual planets being hit. So... Han Solo took them to Maz's bar in the same system that the New Republic existed in then to the Resistance base in a different system? Does that mean the Starkiller was parked around the New Republic's star as well? Did it later move to the star system housing the Resistance? Is that why the X-Wings could stop it before its 15 minute charging sequence finished?

Well, seeing the planets explode makes very little sense, but the beam was supposed to be FTL, so theoretically, Starkiller isn't necessarily anywhere near any of its targets. The proximity to a star might be a different matter, though. About the 15 minutes window, though, I think I need another viewing to try and come up with an excuse for it. :p