We're moving around it, but we aren't moving very fast (relative to c), and our relative distance from it isn't changing much. The duration shouldn't be much different despite the distance.

 That makes an assumption that the flare was unidirectional. If it's a beam, it could be that Earth was in the beam for an hour, but its duration is anything (like, 1M years)
 This is something awesome to consider. Perhaps we only passed through the beam. Perhaps the beam itself was rotating.
 The beam would have to be godlike collimated to make any of the relevant velocities enough to take us trough it in a few hours.Things that far away just don't move fast.
 Wouldn't time dialation around the black hole be very extreme? As in, from the perspective of just outside the black hole where the flare presumably started, it would have lasted only a very brief amount of time.
 Bright long lasting events like this are extremely unlikely to occur every close to the event horizon. https://en.m.wikipedia.org/wiki/Innermost_stable_circular_or...
 > The duration shouldn't be much differentDoes that mean, same duration within nanoseconds? milliseconds? seconds? minutes?
 It doesn't sound like you're asking in good faith, but I'll answer anyway.It was "a couple hours", so without doing too much more math than that, it was probably the same duration here and there within "a couple minutes". I'm more than comfortable calling that the "same" duration in conversational terms, but I would expect it's not the same duration within nanoseconds, as we're accelerating relative to Sgr.A* (rotationally).
 I was asking of curiosity – thank you for sating it!I'm not familiar with spacetime, and was curious for a sense of scale here. A couple of minutes difference sounds quite significant to me (though I agree I'd conversationally call it "about the same").
 My mistake, it just sounded confrontational.But yes, space is way more enormous than most people (including myself) can wrap their head around. Spacetime warping is also hard to really get, I understand it conceptually but I can't really picture it.Things moving less than about 15% of the speed of light experience less than 1% time dilation, and for comparison, we're moving around the center of the galaxy at 0.2% of the speed of light.One of the wildest things to me is that GPS satellites have to compensate for time moving slightly slower because they're moving so fast around the earth, and also time moving slightly faster because they're further from the gravity of earth.

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